肝细胞来源于（）。 A．内胚层  B．中胚层  C．外胚层  D．卵黄柄  E．卵黄

Justin Bieber was nominated for the Best New Artist Grammy 2011. Both he and his fans were excited to hear the great news!

Born on March 1, 1994, in Canada, Justin entered a singing contest when he was 12 and won the second place. He taught himself to play the piano, drums and guitar. In 2007 Justin posted videos of his singing on the Internet and became famous. In 2008, he became a singer with a record company. Since then, he has become a big name. Justin is so popular that screaming fans show up everywhere for his appearance. Several of his performances had to be cancelled because there were too many fans!

In February, 2011, Justin’s biopic Never Say Never will come out. Justin came from a poor family. But he said in his book that not having as many things as his friends made him stronger and built his character. He wants to tell people that you can do anything if you just put your mind to it.

小题1:Who taught Justin to play the piano, drums and guitar?

A．His fans.

B．His friends.

C．He himself.

D．His teacher.小题2:When did Justin become a singer with a record company?

A．In 1994.

B．In 2007.

C．In 2008.

D．In 2011.小题3:Why did Justin have to cancel some of his performances?

A．Because he was badly ill.

B．Because he thought his performances weren’t good enough.

C．Because he didn’t want to have any performances.

D．Because there were lots of fans.小题4:Which of the following is True according to the passage?

A．Justin was born in a rich family on March 1, 1994, in Canada.

B．Justin entered a singing contest when he was 12 and won the first place.

C．Justin is so terrible that he has few fans.

D．Justin said that poor environment made him stronger and built his character.小题5: What’s the meaning of the word “biopic” in the last paragraph?

A．自传

B．声明

C．论文

D．小说

在计算工程索赔时，最常用的索赔费用的计算方法是（）。

A.利润索赔法

B.直接费用法

C.间接费用法

D.实际费用法

患者，女性，25岁，因骨折手术，术中输入A型悬浮红细胞200ml后，出现腰痛，血压下降，继续输血，血压下降更甚，尿液呈酱油色。

诊断首先考虑为（）。

A.发热反应

B.过敏反应

C.溶血反应

D.细菌污染反应

E.急性肺水肿

1984年4月8日，我国成功地发射了自行研制的第一颗（），成为世界上第5个用本国火箭发射同步卫星的国家。

A、同步通讯卫星

B、同步气象卫星

C、同步测量卫星

采用增湿、加抗静电剂等措施加速泄放静电，避免静电积累的防护方法称（）法。

A、泄漏

B、中和

C、工艺控制.