高处作业严禁上下投掷工具、材料和杂物等;在梯子上工作()携带工具包,防止落物。 A.

题型:单项选择题

问题:

高处作业严禁上下投掷工具、材料和杂物等;在梯子上工作()携带工具包,防止落物。

A.应

B.不应

C.禁止

D.可以

考点:钻井队HSE考试中石油HSE管理应知应会中石油HSE管理应知应会题库
题型:单项选择题

以下哪项不属于电子商务业务模式价值体现.()

A.员工自我实现

B.信用认证

C.质量保证

D.金融服务

题型:单项选择题

※ [23~24].

. (3 )

A. .

B..

C..

D. ‘ ’ .

题型:单项选择题

云中的大气电场和大气体电荷密度分布大致分为无规则电荷分布;正单极电荷分布;负单极电荷分布; ()六种类型。

题型:单项选择题

When I was young, my parents ran a snack bar in our small town.One evening in early April, my mother told me to fill in at the snack bar (1) a worker who had the flu. I told her I would mess it up, (2) I had never worked at the bar before. I (3) that instead of making money, I would end up owing it."You can do it," said my mother," (4) , you won’t get much business until lunch. ""But I’ll never remember the orders, and I’m no good (5) money. Please, Mom, don’t (6) me."Then I’ll help you", she said.I shrugged my shoulders. I thought my mother’s (7) was a bad one, but I (8) .When I got to the bar the next day, I found my mother was (9) . Because the weather that day was rainy and cold, people wanted hot snacks and drinks. (10) , I was really slow at taking the orders and making change. The line of people grew, and everybody seemed (11) , I was so nervous that my hands shook, and I (12) a cup into pieces. What a mess! Then my mother came to (13) me, and she also showed me how to make (14) . If someone gave me $ 5 for something that cost $ 3.25, I handed over (15) quarters and a dollar and said, "75 cents makes four dollars, plus one dollar makes five. " Things went more (16) after that.By the end of the day, I could remember orders, (17) the bill, and make change quickly with a smile. I was even a little (18) when the sun came out and dried up business. My mother said she was proud of me, and when she (19) that I work at the snack bar again next year, I did not even shrug. I was too busy (20) the restaurant I would open one day.

 

第(14)空应选择()

A.money

B.lunch

C.coffee

D.change

题型:单项选择题

电冰箱蒸发器结霜融化后,使箱内温度升至()左右时,双金属化霜温控器断开加热器。

A.3℃

B.5℃

C.13℃

D.18℃

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