防止静电的主要措施是（）。 A.接地 B.通风 C.防燥 D.防潮

发布时间：2019-05-23 16:44 │ 来源：www.tikuol.com

题型：单项选择题

问题：

防止静电的主要措施是（）。

A.接地

B.通风

C.防燥

D.防潮

考点：安全工程师安全生产技术安全工程师安全生产技术模拟试卷（五）

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     Jimmy is very   1   at math. Mary, his sister, doesn't do well   2   it. Jimmy often helps her with her
math. One night, Jimmy and Mary take out their exercise books and begin   3   their homework. Soon
Jimmy finishes   4   his homework, but his sister    5 . She can't work   6   the last problem. "Let me
  7   you. says Jimmy. "No, please    8   . I'll do it myself. ", says Mary. She thinks and thinks, and an
hour later she   9   it out. She is very tired, but she is very  10 .

( )1. A. good
( )2. A. at
( )3. A. to make
( )4. A. do
( )5. A. doesn't
( )6. A. on
( )7. A. help
( )8. A. isn't
( )9. A. finds
( )10. A. sorry

B. better
B. in
B. do
B. to do
B. don't
B. out
B. to speak
B. couldn't
B. works
B. bad

C. fine
C. on
C. to do
C. did
C. needn't
C. at
C. helping
C. can't
C. looks
C. happy

D. well
D. of
D. to get
D. doing
D. can't
D. for
D. to tell
D. don't
D. does
D. angry

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C、丝虫病——伊蚊

D、肝片吸虫——钉螺

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