DL-蛋氨酸,DL-甲硫氨酸,甲硫了氨酸

[00:03.89]CONVERSATION 1 [00:08.86]TELL ME ABOUT YOUR FAMILY [00:13.22]Announcer:National Flight 294 to Miami is delayed due to severe weather conditions. [00:22.88]Please stand by or additional information. [00:27.87]Maria: Oh no! I hate these long

发表于:2018-12-02 / 阅读(108) / 评论(0) 分类 新英语交谈注释版

[00:04.18]CONVERSATION 2 [00:09.46]COULD I HAVE YOUR NAME. PLEASE? [00:13.22]Officer: Yes. can I help you? [00:17.97]Ms. Paine: I'd like to open a savings account. [00:22.05]Officer: Certainly. First we'll have to fill out a few forms. [00:27.19]Coul

发表于:2018-12-02 / 阅读(182) / 评论(0) 分类 新英语交谈注释版

[00:04.41]CONVERSATION 1 [00:09.38]DO YOU KNOW WHERE IT IS? [00:13.92]Michelle: What are you doing? [00:18.49]Dominic: I'm cooking dinner tonight. [00:22.05]Michelle: That's great. Thank you. What are you making? [00:27.51]Dominic: A surprise. By the

发表于:2018-12-02 / 阅读(205) / 评论(0) 分类 新英语交谈注释版

[00:04.49]CONVERSATION 2 [00:09.35]WHAT DOES IT LOOK LIKE? [00:13.30]Luis: Teresa? ... I can't find the what-do-you-call-it. [00:20.66]Teresa: What can't you find? [00:24.50]Luis: You know. The thing. [00:28.26]Teresa: What thing? [00:31.50]Luis: Oh,

发表于:2018-12-02 / 阅读(211) / 评论(0) 分类 新英语交谈注释版

[00:03.21]CONVERSATION 2 [00:08.07]I LOVE THE SEASHORE. [00:12.43]Tom: This one looks great! I love the seashore. [00:19.98]Ellen: So do I. The sun ... the sand ... the ocean! [00:26.44]Tom: And listen to this! [00:29.99]What do you think of sailing,

发表于:2018-12-02 / 阅读(202) / 评论(0) 分类 新英语交谈注释版

[00:03.50]CONVERSATION 2 [00:08.36]WHAT DO YOU WANT TO DO? [00:12.43]Henry: Hi, Alice ... have you made any New Year's resolutions yet? [00:20.30]Alice:Just the usual.I'd like to lose some weight,and I want to save some money. [00:26.17]Henry: Come o

发表于:2018-12-02 / 阅读(194) / 评论(0) 分类 新英语交谈注释版

[00:02.98]CONVERSATION 1 [00:08.25]COULD YOU HELP ME? [00:11.62]Clerk: Hi. Can I help you with something? [00:18.29]Paulina: Yes, please. We're looking for the men's department. [00:23.33]Clerk: It's right over there, by the escalator. [00:27.69]Dieg

发表于:2018-12-02 / 阅读(176) / 评论(0) 分类 新英语交谈注释版

[00:03.68]CONVERSATION 2 [00:08.72]COULD YOU CHANGE MY ROOM? [00:12.98]Guest: Excuse me. [00:17.35]Clerk: Yes? What can I do for you? [00:21.71]Guest: I just checked in, and there's a problem with my room. [00:27.38]Clerk: And what is the problem? [0

发表于:2018-12-25 / 阅读(173) / 评论(0) 分类 新英语交谈注释版

This monument to Islamic heritage is getting a new lease on life. The Bou Inania Medersa or Koranic school was once an architectural jewel of the medieval city of Fes. But centuries of neglect have taken a toll. Restorers are cleaning layers of white

发表于:2018-12-30 / 阅读(182) / 评论(0) 分类 国家地理2007年

It is early evening and soon this amphitheater will be standing room only for the evening show. Bats, hundreds of thousands of Mexican Free-tailed bats, are hungry tornado that swirls out of New Mexico's Carlsbad Caverns each night in search of food.

发表于:2018-12-30 / 阅读(176) / 评论(0) 分类 国家地理2007年

Summer vacation Today is the first day of summer vacation. Its wonderful that therere sixty days in the summer vacation. My sister and I began packing our baggage, since we'll have European trip next week. It took me three months to plan this trip,

发表于:2019-01-02 / 阅读(119) / 评论(0) 分类 不用背句型学英语

THIS IS AMERICA -December 23, 2002: Christmas Traditions and Music By Shelley Gollust (THEME) ANNCR: Millions of Americans will celebrate Christmas on December Twenty-Fifth. It is the most widely-cele

发表于:2019-01-02 / 阅读(158) / 评论(0) 分类 This is America

THIS IS AMERICA - December 30, 2002: New Year's Traditions By Jerilyn Watson (THEME) VOICE ONE: On December thirty-first, Americans and other people around the world welcome the New Year. I’m Mary T

发表于:2019-01-02 / 阅读(195) / 评论(0) 分类 This is America

THIS IS AMERICA - October 14, 2002: Patents and Inventions By George Grow VOICE ONE: An office of the American government has helped to protect the legal rights of inventors for two- hundred years. Th

发表于:2019-01-02 / 阅读(149) / 评论(0) 分类 This is America

By Jerilyn Watson THIS IS AMERICA -May 13, 2002: Sondheim Celebration VOICE ONE: The John F. Kennedy Center for the Performing Arts in Washington, D.C currently is honoring the work of one of America’

发表于:2019-01-07 / 阅读(165) / 评论(0) 分类 This is America

Grammar Girl here. Today's topic is verbification. Last week police used a Taser on University of Florida student Andrew Meyer as they struggled to remove him from an auditorium where Senator John Kerry was speaking. The Web has been filled with deba

发表于:2019-01-30 / 阅读(176) / 评论(0) 分类 英语语法 Grammar Girl

英语作文 It is summer vacation and school is out. During summer vacation, most children stay home, watch TV and play with their friends. Some take part in a neighborhood sports program and some go camping. A camp is summer vacation place for childre

发表于:2019-02-01 / 阅读(205) / 评论(0) 分类 英语作文

1.W: Congratulations to you on your success! 祝贺您取得成功。 G: Thank you very much. 非常感谢。 2. W: Please accept my heartiest congratulations on your cooperation! 请接受我对您的合作表示最衷心的祝贺。 G: Thanks. 谢谢

发表于:2019-02-02 / 阅读(133) / 评论(0) 分类 实用英语

( 00:04:10---00:07: 51)DOUG JOHNSON: This week's listener question comes from China. Vera Tang wants to know what college students do during their summer vacation. There is no quick answer to this question. Students spend their summers in many differ

发表于:2019-02-06 / 阅读(81) / 评论(0) 分类 英语杂谈

Key Sentences(重点句子) 590.Have you got any idea where you would like to go this summer? 你打算今年夏天去哪儿休假? 591.I was thinking I might travel to Hangzhou. 我一直打算去杭州度假。 592.I don't think it's a

发表于:2019-02-07 / 阅读(139) / 评论(0) 分类 实用英语
学英语单词
acid-base unbalance
adjusting tank
audibility zone
autogenerated
baugham
be used with
Bek'ojī
besmitten
brown-purpler
buying and selling operation of securities
bytime
cable distribution head
calendar finger
call somebody back
capacity coupled
Celaque
cellery
Ceruleofibrite
CFRC
Chandragupta Maurya
Ciidae
combined snubber
complementary royal forms
compound animals
copying machine
corporate enterprise
donis
double-discharge stabilization
electroneutrality relation
electrostatic spraying process
employment management
enchaunter
erasers
exognathia
explores
fault latency
fladellate
flowsheet symbol
free impedance
froud
Gourimanohari
government-issued
green-stone
gross recoverable value of ore
haemolysate
impact brinell hardness tester
individual policy
intermittent albuminuria
isocamphane
jinglers
Kythrea
labor intensive production
leader rolls
left-liberals
letter of ratification
licinius
Lobatannularia
longitudinal flow
make yourselves cheap
melchisedeks
Mucura
Muron
naturalists
Ngumbin
non-bag purse seine
nonsingular linear function
page stealing
photoretinitis
pineocytomas
pleurethmoid (or lateral ethmoid)
put someone off their stroke
razumikhins
realplay
Retzius's veins
Rhaponticum
rightanglepris
run free
Sacae
sarapiqui
self-noughting
shevelove
sinanthropus pekenensis
star of cell
stuck-open
subdued
sublimatories
sulfhydrylation
superschools
tax on dividends
test of business capacity
torque constant
Toryism
turbojet test vehicle
Turpinia subsessilifolia
Ultra-Violet Degradation
understrappers
vascular murmur
vector cohomology
water-immersion simulation test
wiarda
working groups
zucchettos