疾病二级预防的主要措施是A.定期检查 B.群众自我检查 C.合理用药 D.早期用药

题型:单项选择题

问题:

疾病二级预防的主要措施是

A.定期检查

B.群众自我检查

C.合理用药

D.早期用药

E.以上都正确

考点:卫生资格考试(中初级)疾病控制专业实践能力疾病控制主治医师专业实践能力5
题型:单项选择题

阅读短文,并判断正(√)误(×)。

      Hi, this is Liu Yun. I'm going to have a busy weekend! On Saturday, I'm going to the bookstore by subway.

I'm going to buy a new CD and some story-books. Then, I'm going to go home and read the new books. On

Sunday, I'm going to the supermarket with my mother. We're going after lunch. Then, in the evening, I'm going

to visit my aunt. We're going to watch TV together. I will have a nice weekend!

( ) 1. Liu Yun is going to the bookstore by bus.

( ) 2. Liu Yun is going to buy a new VCD and some picture-books.

( ) 3. Liu Yun is going to go home and read the new books.

( ) 4. On Saturday, Liu Yun is going to the supermarket.

( ) 5. In the evening, Liu Yun is going to visit her aunt.

题型:单项选择题
若点P(2,0)到双曲线
x2
a2
-
y2
b2
=1
的一条渐近线的距离为
2
,则双曲线的离心率为______
题型:单项选择题

—Can I help you?

—Yes, please. _____[ ]

A. I can play the guitar very well            

B. I want a blue T - shirt

C. I want to go to a comedy              

D. I don't need your help

题型:单项选择题

某些植物的花汁可作酸碱指示剂。取三种花汁用稀酸溶液或稀碱溶液检验,颜色如下:

试回答下列问题:    

(1) 为试验生活中的食盐水、肥皂水、汽水、石灰水四种物质的酸碱性,我选择  ____  花汁,不选用其他花汁的原因是                                

(2) 取所选花汁少许分别滴人上述四种物质,请将所显颜色填入下表中:

题型:单项选择题

如果采用树脂交换剂进行锅外化学水处理的话,()会进入树脂交换颗粒内部的孔隙,造成树脂交换剂中毒。

A、溶解氧

B、悬浮物质

C、胶体物质

D、钙镁离子

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