单词：second polar moment of area
单词：second polar moment of area 相关文章
Dialogue A A:Hello,Doctor Chen's clinic.May I help you ? B:Yes,please.I'd like to make an appointment to see Doc. Chen. A:What's your name,please? B:My name is Micky Chen. A:Is four o'clock in the afternoon OK? B:That's fine.Thank you. Dialogue B A:I
EPT美语 第六级（大学适用）
A new study has found that the Arctic's iconic polar bears are finding it harder to hunt for food due to melting sea ice caused by climate change, putting the species at a growing risk of extinction. Researchers from the United States Geological Surv
2018CRI中国国际广播电台
When the Arctic Ocean freezes over in the autumn, polar bears set off in search of their favorite meals: fatty ringed seals and bearded seals. By the summer, the sea ice begins to melt and break apart. Deprived of access to the tasty seals, polar bea
2016年Scientific American(十)月
Seventy-nine degrees north latitude is near the top, at the cold edge of the world. In the winter, when temperatures plunge below freezing, there is complete darkness at noon. During summer, the sun shines at midnight, there is no place to hide. Dang
国家地理2007年
She worries a lot. She worries about polar bears. They are big, white bears. They live in the north. They need snow. They need ice. They need cold weather. There is too much pollution. Pollution heats up the Earth. Heat melts the ice. The ice is the
儿童英语小故事
A: Good morning. United Airline. B: Hello. I'd like to speak to Mr. Reynolds. A: I'm sorry he's not in right now. Would you like to leave a message? ---------------------------------------------------
实用英语
AMERICAN MOSAIC - Remembering Two Bright Stars of Music; 'To the Arctic' JUNE SIMMS: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) Im June Simms. This week on our program, we remember two music greats, Chuck Brown and Donna Summe But, fi
2012年VOA慢速英语(五)月
BBC Learning English Weekender Polar Explorer Amber: Hello, I'm Amber, and youre listening to bbclearningenglish.com. In Weekender today, we listen to an interview with explorer, Rosie Stancer. In March, Rosie sets off on her latest expedition walki
Weekender
A: Good morning. United Airline. B: Hello. I'd like to speak to Mr. Reynolds. A: I'm sorry he's not in right now. Would you like to leave a message? -------------------------------------------------------------------------------- A: May I help you? B
实用英语
STOCKHOLM, May 8 (Xinhua) -- The 2012 Swedish Polar Music Prize was awarded to the American singer-songwriter Paul Simon and the Chinese American cellist Yo-Yo Ma, the prize committee said in a statement on Tuesday. For five decades, Paul Simon has b
英语新闻
Voice 1 Thank you for joining us for todays Spotlight. Im Rebekah Schipper. Voice 2 And Im Joshua Leo. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Sib
环球英语 Spotlight
The dogsled skimmed silently over the frozentundra. The seal hunter ran alongside it. Sometimeshe cracked his whip against the ice. The snowdrifts looked like giant white sculptures asthe sun slipped behind the frozen hills. Then a fullorange moon ro
汪培珽儿童英文分级书单《神奇树屋》
The dogs were barking wildly at two smallcreatures playing in the moonlight. Polar bear babies! cried Annie. One roly-poly cub leaped onto the other. Then theyboth rolled through the snow. Hi, little bears! Annie called. The cubs jumped up and shook
汪培珽儿童英文分级书单《神奇树屋》
The cubs whimpered louder. They want to go to her, but they're afraid of theice, whispered Jack. Annie petted the cubs. Don't be afraid, she told them. You'll get back toyour mother.The big polar bear growled. She paced back andforth, sniffing the ai
汪培珽儿童英文分级书单《神奇树屋》
Jack, you can get up now, said Annie. Jack opened his eyes. Annie was standing over him. She still had her mask on. We're on safe ground, she said. Jack felt as if he'd been dreaming. He lookedaround. They had reached the tundra at the edge ofthe fro
汪培珽儿童英文分级书单《神奇树屋》
Now only the moon shone on the snow. Jack looked around for the polar bear. She was gone. Where'd she go? asked Annie. I don't know, said Jack. He looked over thetundra. There was no sign of the giant bear or hercubs. Maybe she's not interested in sc
汪培珽儿童英文分级书单《神奇树屋》
A: Id like to reserve a table for three at 7:00 this evening. B: Let me check. Hold on, please..Yes, thats fine. Smoking or nonsmoking area A: Nonsmoking, please. B: All right. May I have your name A: My name is Zhong. B: How do you spell it, sir A:
实用英语
BEIJING, June 21 (Xinhua) -- China will launch a new icebreaker for use during an upcoming 2013 polar expedition, a senior oceanic official said on Tuesday. Both the new icebreaker and Xuelong (Snow Dragon), an icebreaker that operated in Antarctica,
英语新闻
Voice 1 Hello, Im Marina Santee. Voice 2 And Im Ruby Jones. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 A tall man stands s
环球英语 Spotlight
A: Id like to reserve a table for three at 7:00 this evening. B: Let me check. Hold on, please..Yes, thats fine. Smoking or nonsmoking area A: Nonsmoking, please. B: All right. May I have your name A: My name is Zhong. B: How do you spell it, sir A:
实用英语