在进行毒理学安全性评价之前,了解受试物的挥发性的目的是A.可以确定吸入毒性 B.可判

题型:单项选择题

问题:

在进行毒理学安全性评价之前,了解受试物的挥发性的目的是

A.可以确定吸入毒性

B.可判断经呼吸道染毒的必要性

C.有助于呼吸道染毒剂量的设计

D.有助于呼吸道染毒时染毒方法的选择

E.有助于防止呼吸道染毒时的交叉吸收

考点:临床医学检验技术士临床检验士基础知识初级临床医学检验技士基础知识5
题型:单项选择题

阅读理解。

    American schools begin in September after a long summer holiday. There are two terms in a school year;

the first term is from September to January, and the second is from February to June. Most American children

begin to go to school when they are five years old. Most children are seventeen or eighteen years old when

they finish high school.

    High school students take only five or six subjects each term. They usually go to the same class every day,

and they have homework for every class. After class, they do a lot of interesting things.

    After high school, many students go to colleges. They usually have to pay a lot of money. So many college

students work after class to get money for their studies.

1. In America, summer holidays begin in           . [ ]

A. September

B. July

C. May

D. February

2. When a boy is six years old, he           . [ ]

A. has to stay at home

B. can go to high school

C. is old enough to go to school

D. always plays at home

3. In American high school students            after class. [ ]

A. do the homework

B. go to work

C. play basketball

D. do many interesting things

4. In order to (为了)           , many American college students work after class. [ ]

A. help their parents

B. get money for their studies

C. help others

D. learn some useful things

5. Which is right? [ ]

A. American students usually have a two-month holiday.

B. American students have three terms in a year.

C. A ten-year-old child usually has six subjects at school.

D. American students don't like to go to school.

题型:单项选择题

倾听时容易出现的错误是()。

A.迟迟不下结论

B.做出道德和正确性的评价

C.过分重视求助者的问

D.不好意思打断求助者的叙述

题型:单项选择题

1,2,3,5,7,(),13

A.12

B.9

C.11

D.10

题型:单项选择题

简述网络传播及其特征。

题型:单项选择题

下列属于激励要把握最佳时机的内容的是()。

A、需在目标任务下达前激励的,要提前激励

B、对有突出贡献的予以重奖

C、对造成巨大损失的予以蜇罚

D、员工遇到困难,有迫切需求时,要给予关怀,及时激励

E、克服有亲有疏的人情风

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