全酶是指什么A.酶的辅助因子以外的部分 B.酶的无活性前体 C.一种需要辅助因子的酶

题型:单项选择题

问题:

全酶是指什么

A.酶的辅助因子以外的部分

B.酶的无活性前体

C.一种需要辅助因子的酶,并已具备各种成分

D.一种酶抑制剂复合物

考点:普通考研西医综合西医综合
题型:单项选择题

一般O型血清中抗A和抗B主要是()

A.IgM

B.IgG

C.IgA

D.IgE

E.IgD

题型:单项选择题

清朝实行闭关锁国的政策,但只允许一个城市对外通商,这个城市是 [ ]

A.北京

B.广州

C.上海

D.泉州

题型:单项选择题

下列估测符合实际的是(  )

A.一个苹果重约4N

B.人站立时,对水平地面的压强约是104Pa

C.一本物理课本的质量约为5kg

D.中学生的质量大约是50g

题型:单项选择题

阅读理解。

     Superman, Spider-Man, Batman and Iron Man....There is no shortage of superheroes. You find them in

comic books, on the TV and the big screen.

     In a survey of fans by the sci-fi (科幻) and fantasy website, SFX.co.uk, Batman, 70 years old this year,

was voted Britain's favorite superhero.

     Unlike many crime-fighting superheroes Batman has no special powers. He can't fly like Superman or

shoot a sticky (粘性的) web like Spider-Man.

     Bruce Wayne is born to a wealthy Gotham City business family. However, when his parents are murdered

his life changes completely.

     Wayne feels anger at their deaths and guilty that he did not prevent them. He travels around the world

learning how to fight. Upon returning to Gotham, he creates a disguise (伪装) to enable him to fight crime

without being recognized.

     A childhood fear of bats leads him to choose to dress as one. His idea is that through the bat persona (角

色) he can prove to himself that he has overcome his childhood fears.

     Wayne is the CEO of the company he inherits (继承) from his father. He seems to live the lifestyle of a

millionaire playboy. But this is a ruse (计策). He works hard at the image to allow himself the freedom he needs

to do his work as a crime fighter. "Bruce Wayne, playboy" is the disguise(伪装); Batman is the real person.

     "Wayne is not a born superhero. Instead, he is a real, complex person," said Dace Golder, editor of the

website. "He is the most realistic of all the superheroes. I am particularly interested in the emotional process

by which a boy becomes a hero. His superhero qualities come from within."

1. What is the article mainly about?[ ]

A. How Bruce Wayne develops into a superhero.

B. How to overcome childhood fears.

C. What makes a superhero.

D. Why superheroes enjoy great popularity in Britain.

2. Batman differs from other superheroes in that _____. [ ]

A. he was not a born superhero

B. he had an unhappy childhood

C. he doesn't have any special powers

D. he does his best to fight crime

3. Bruce Wayne decides to dress like a bat because of _____. [ ]

A. his curiosity about bats

B. his childhood fear of bats

C. his parents' sudden death

D. his unusual travel experiences

4. Why does Wayne live like a playboy? [ ]

A. He prefers the lifestyle of a playboy.

B. He doesn't know how to run a company.

C. He loves freedom more than anything else.

D. He needs to disguise his crime fighting activities.

5. Which of the following statements is true about Batman? [ ]

A. Batman is a born superhero

B. He has special powers

C. The turning point of his life is due to his parents' sudden death

D. He actually lives the lifestyle of a millionaire playboy

题型:单项选择题

下列化学用语书写正确的是    (     )

A.1个氖原子 Na

B.+2价的铁元素 Fe+2

C.4个氢分子 4H

D.3个硝酸根离子 3NO3

更多题库