绝对致病菌

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is about a millimeter across. Rod-shaped bacteria are u

发表于:2018-11-28 / 阅读(603) / 评论(0) 分类 新概念优美背诵短文50篇

Bacteria are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in microns. One micron is a thousandth of a millimeter: a pinhead is abo

发表于:2018-12-01 / 阅读(286) / 评论(0) 分类 新东方背诵文选

新东方赵丽词汇课堂Lesson 30听力下载

发表于:2018-12-15 / 阅读(310) / 评论(0) 分类 新东方赵丽词汇课堂

Part One 听辨练习 A. 词辨音 Listen, circle the corresponding number if you hear /???in the word. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. B. 短语辨音 Write down the words you hear on the tape, then f

发表于:2018-12-24 / 阅读(158) / 评论(0) 分类 4+1听力口语MP3

Student: I don't think I deserve an absolute zero. Professor: Neither do I, but it is the lowest mark that I am allowed to give. 学生:我认为我不应该得零分。 教授:我也这么认为,但这是允许我打的最低分数。

发表于:2019-01-02 / 阅读(186) / 评论(0) 分类 英文笑话

One day a college professor of Psychology was greeting his new college class. He stood up in front of the class and said,Would everyone who thinks he or she is stupid please stand up?After a minute or so of silence, a young man stood up. Well, good m

发表于:2019-01-07 / 阅读(180) / 评论(0) 分类 趣味英语

By Ruth Reader Washington, DC 13 February 2008 There is growing concern around the world over illnesses caused by new antibiotic-resistant bacteria, or so-called superbugs, and the decreasing effectiveness of antibiotics to treat infections. Earlier

发表于:2019-01-07 / 阅读(186) / 评论(0) 分类 VOA常速英语2008年(二月)

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Heres a novel potential public health measure against the flukick up the humidity. The cold, dry months of winter signal the start of flu season. But previous resear

发表于:2019-01-08 / 阅读(214) / 评论(0) 分类 Scientific American(二)月

Experts: Let Produce Dry Out to Avoid Bacteria American researchers say farmers should wait one day after a rain storm or watering their fields to harvest fresh fruits and vegetables. They say gathering the crops at least 24 hours after rainfall incr

发表于:2019-01-12 / 阅读(314) / 评论(0) 分类 2015年VOA慢速英语(七)月

Whats the lively in your kitchen? In terms of bacteria is it the the dish or maybe your coffee maker. Because even known caffeine has anti-bacteria effects, it turns out that machine can hold back majority of bacteria, including some pathogenic speci

发表于:2019-01-20 / 阅读(166) / 评论(0) 分类 2015年Scientific American(十二)月

What's the liveliest part of your kitchen, in terms of harboring bacteria? Is it the cutting board? The dish sponge? Or maybe your coffeemaker? Because even though caffeine has antibacterial effects, it turns out espresso machines can harbor a whole

发表于:2019-01-20 / 阅读(148) / 评论(0) 分类 2017年Scientific American(二)月

(1) T:Look at number 120. Have you got any?你有吗? S: Ineed a lot of cheese. I haven't got much.我需要一些奶酪,我没有多少了。 (2) T: Look at Number 438. Has he got any?他有吗? S: Heneeds a lot of envelopes. He hasn't

发表于:2019-01-23 / 阅读(186) / 评论(0) 分类 英语学习乐园

hemagglutinin 血凝素 Neuraminidase 神经氨酸酶 Nucleoprotein 核蛋白 Nonstructural Protein 非结构蛋白 Matrix Protein 基质蛋白 world organization for animal health (OIE) 国际兽医组

发表于:2019-01-31 / 阅读(188) / 评论(0) 分类 英文语法词汇

10. East or west, home is best. 东好西好,还是家里最好。 11. Two heads are better than one. 三个臭皮匠,顶个诸葛亮。 12. Good company on the road is the shortest cut. 行路有良伴就是捷径。 13. Constant dropping wears

发表于:2019-02-02 / 阅读(247) / 评论(0) 分类 励志英语

句子构成的成分共分为九种:主语,谓语,宾语,表语,定语,状语,补语,同位语和插入语。本文将为大家介绍主语,谓语,宾语三种语法。 一、主语:句子的核心主体,通常位于谓语动词

发表于:2019-02-13 / 阅读(178) / 评论(0) 分类 雅思英语

A lecturer was giving a lecture to his student on stress management. He raised a glass of water and asked the audience, How heavy do you think this glass of water is? The students answers ranged from 20g to 500g. It does not matter on the absolute we

发表于:2019-02-18 / 阅读(188) / 评论(0) 分类 阅读空间

一、 "There be"结构 考生病句: 1. There are many people like to go to the movies. 2. There are different kinds of vegetables can be bought on the market by people. 正确表达: 1. There are many people who like to go to the movies. 2.

发表于:2019-02-18 / 阅读(131) / 评论(0) 分类 实用英语

Some students prefer to study alone. Others prefer to study with a group of students. Which do you prefer? Use specific reasons and examples to support your answer. Study habits are a very individual thing. Some people like to study alone, while othe

发表于:2019-02-19 / 阅读(151) / 评论(0) 分类 托福英语

While explaining stress management to an audience, the lecturer raised a glass of water and asked 'How heavy is this glass of water?' Answers called out ranged from 20g to 500g. 当向听众解释压力管理的时候,讲师拿起一杯水问道:这

发表于:2019-02-21 / 阅读(156) / 评论(0) 分类 阅读空间

1. Pain past is pleasure. 过去的痛苦就是快乐。 2. Wisdom in the mind is better than money in the hand. 脑中有知识,胜过手中有金钱。 3. Nothing is impossible for a willing heart. 心之所愿,无所不成。 4. All th

发表于:2019-02-25 / 阅读(180) / 评论(0) 分类 阅读空间
学英语单词
a wake-up call
acetylenedicarboxamide
active-treatment
aminopyrimidine
anti-reform
Archacobacter
asylee
authent
ball-float liquid-level meter
Barclaycards
be built on a rock
bit interlacing
blade ring
bludder
Bothrodendron
bottom sediment chart
burst pulse
butting-joint
BVD's
capillary pulsation
cassida quadriramosa
characteristic admittance
Charlier'sIScarpa' shoe
charops striata
chemical transmission synapse
chicken snake
cogwood
colony-forming unit-monocyte macrophage
common death adder
conference on labour and employment work
contact bed
copper earth tube
cpx
ddacryoma
deep tank portside and starboard side
driving ban
elimination by comparision
file access listener
flange joint bar
front electrode
Gaius, Saint
gas-tight seam
Geiger region
goukounis
haaste
hare skin
Hiram
hovering accent
in royal spirits
inner post
limiting melting point
machining centers
mahogany-reds
make an impression on sb
mansionary
master bar
meger
metabranchial
methylnonyketone
Monro's bursae
multi-focal
Multicurrency loans
multiple granuloma
nursers
ojibwas
packing type solid solution
periodical reports
primrose
pto shaft
pulsed cavitation
quantitative technique
quasi drugs
redox chemistry
rim value
ringlikest
Rodo
San Vicente de Castellet
screw for motor starter
Seine-et-Marne, Dép.de la
self-contradictions
semenologists
skew rolling mill
stabilizing resistance
status macrobioticus multiparus
strain limit
superexcellent
sylvite deposit
system statistics
talkaholics
term vector
tetrade scar
the weather man
toe sign
traffic simulation
trichilemmocarcinoma
TRUJILLO
unclaimed letter
unfantastic
uniplex information and computer services
vernished
white fibrous tissue
Yingo