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问题 单项选择题

储存危险化学品的建筑物、区域内严禁( )。

A．严禁携带香烟
B．严禁吸烟和明火
C．严禁逗留
D．机动车严禁驶入

答案

参考答案：B

解析：储存危险化学品的建筑物、区域内严禁吸烟和使用明火。

单项选择题 A1型题

冠心病心绞痛与心肌梗死的疼痛，其主要鉴别点是（）

A.疼痛的持续时间与强度不同

B.疼痛部位不同

C.疼痛性质不同

D.疼痛的放射部位不同

E.疼痛时伴发恶心
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单项选择题

We wish to express our satisfaction at this to the Special Committee, their activities deserve encouraged.

A. whose activities will deserve to be encouraged.
B. their activities deserve to be encouraged.
C. whose activities should deserve being encouraged.
D. their activities deserve to be encouraging.
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