空气中含有()、()、()和少量()等对空分装置有害的物质。

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问题:

空气中含有()、()、()和少量()等对空分装置有害的物质。

考点:制氧工考试制氧中级工制氧中级工题库
题型:填空题

读短文,判断正(T)误(F)。

      My birthday is May 18th. I usually get up early on my birthday. I wear my new dress and go to school. I

take candies to my class. After school, I go home and do my homework. In the evening, I have a birthday party.

My mother buys me a big birthday cake. My dad gives me a gift. We sing songs together. I am very happy.

( ) 1. I don't go to school on my birthday.

( ) 2. My birthday is in summer.

( ) 3. I have a birthday party on my birthday.

( ) 4. My mother gives me a birthday gift.

( ) 5. We sing Christmas songs on my birthday.

题型:填空题

Ads sometimes help people learn more about new products, but at other times ads _______ tell lies. [ ]

A. must

B. can

C. need

D. should

题型:填空题

JSA可以减少事故和伤害,然而,它只有在以下哪个做法下才会有效?()

A、定期回顾和更新

B、队领导持续推动JSA在TOOLBOX会议上的宣讲

C、不停的开发新JSA

D、给员工培训JSA

题型:填空题

对分析数据的可疑值应如何处理?

题型:填空题

重症肌无力患者下列哪些药物禁用()。

A.螺内酯(安体舒通)

B.卡那霉素

C.环磷酰胺

D.庆大霉素

E.麻黄素

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