下列关于危险源中的危险因素和有害因素的描述，正确的是（）。 A．危险因素是强调突发性

发布时间：2019-05-31 09:32 │ 来源：www.tikuol.com

题型：单项选择题

问题：

下列关于危险源中的危险因素和有害因素的描述，正确的是（）。

A．危险因素是强调突发性和瞬间作用的因素，有害因素强调在一定时期内的慢性损害和累积作用

B．危险因素强调在一定时期内的损害和累积作用，有害因素是强调突发性和瞬间作用的因素

C．危险因素强调在项目整个生命周期内的损害和累积作用，有害因素强调急性和瞬间作用

D．危险因素是强调突发性和瞬间作用的因素，有害因素强调在项目整个生命周期内的急性损害和累积作用

考点：一级建造师建设工程项目管理建设工程项目管理

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完形填空。

     I think most people have ambitions (志向). An ambition is   1   we want to do, want to be or want to have.
A student's ambition, for example, may be to   2 his or her exams and then get a good job. An athlete's ambition
can be to   3   an important competition. A businessman's ambition is usually to   4   a lot of money.
    However, not all ambitions are   5   the success at work. Some people just want to be good people, have a
family or help others.
     My friend Li Na's ambition is to be a sports   6  . She writes sports reports for the school newspaper. She
likes most sports,   7   swimming and football are her favorites. Wang Hua's ambition is to be a pianist. She is
very serious about it and   8 every day with her best friend Xiao Ying.
    Gao Peng's ambition changes   9   day! Today he wants to be an astronaut. The next day he wants to be a
pop singer. The third day he wants to drive a racing car (赛车). His mother would be  10  if his ambition were
to get up in time for school every day!

( )1.A. nothing
( )2.A. study
( )3.A. win
( )4.A. make
( )5.A. of
( )6.A. waiter
( )7.A. with
( )8.A. talks
( )9.A. each
( )10.A. boring

B. anything
B. pass
B. lose
B. save
B. about
B. player
B. or
B. practices
B. that
B. tired

C. everything
C. give
C. beat
C. keep
C. With
C. athlete
C. and
C. plays
C. every
C. loving

D. something
D. have
D. has
D. borrow
D. to
D. reporter
D. so
D. acts
D. all
D. happy

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A、空气的化学物

B、水，食物残渣

C、盐，金属

D、以上都是

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感染性休克的预示征象，哪些错误（）

A.呼吸加快伴低氧血症和（或）出现代谢性酸中毒

B.尿量增多

C.神志改变，表情淡漠及烦躁不安

D.体温两个极端（过高热>40.5℃；过低温<36℃）

E.血压偏低，心率明显增快

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锰和硅的元素符号是“Mn和Ni”。( )

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