计量器具的检定周期由（）依据检定规程确定。 A.计量行政部门 B.使用单位 C.计量

阅读下面的短文，然后做题。

     I'm going to see a movie with my friends this weekend. We love seeing movies, but we all like

different kinds. I like to see thrillers and science fictions, my friend Sam loves action movies and

comedies and my best friend, Lee, loves a good romance. Because we like different kinds of ?movies,

it can be difficult to choose (选择) one to see. So we usually take turns (轮流) to choose the movie.

It's my turn to choose this weekend, so we're going to see Harry Potter, a new movie: it's number one

at the box office, and everyone is saying what a great movie it is. I can't wait!

1. How many kinds of movies does the writer talk about in the story?

A. Six.        

B. Five.        

C. Four.

2. Harry Potter is _____ movie right now.

A. a boring  

B. a popular

C. an action

3. How do the writer and his friends choose which movie to see?

A. They like different kinds of movies.

B. They let Lee choose which movie to see.

C. They take turns to choose a movie to see.

4.What is the main idea (中心意思) of the story?

A. Choosing which movie to see can be difficult.

B. It's a good thing to see movies with friends.

C. Everyone likes the new movie Harry Potter.

下列哪项是正确的（）。

A.紫外线的波长范围是200～500nm

B.紫外线主要的生物作用是光热效应

C.长波紫外线主要能引起蛋白质和核酸结构上的变化，具有很强的杀菌作用

D.长波紫外线能促进上皮生长，加速再生，引起色素沉着和抗佝偻病等作用

E.紫外线的生物学作用，可与光敏剂配合治疗银屑病和白癜风

班级授课辅助的教学组织形式是复式教学。 （　　）

怀疑医院感染病例取标本进行病原体检查正确的是（）

A.尽量在使用抗菌药物前送标本

B.为节约经费，在抗感染治疗效果不佳时取标本做病原体检查

C.采集标本后及时送检

D.完全按药敏结果用药

E.接到临床标本后及时正确接种

读下图，完成下列问题。

与图示地形特征较吻合的是（）

A.长江中下游平原

B.黄土高原

C.江南丘陵

D.横断山区