以下关于噪声级正确的是( )。 A.对突发噪声往往需要测量最大A声级LAmax及其

题型:多项选择题

问题:

以下关于噪声级正确的是( )。

A.对突发噪声往往需要测量最大A声级LAmax及其持续时间,脉冲噪声应同时测量A声级和脉冲周期

B.A声级一般用来评价噪声源,对特殊噪声源在测量A声级的同时还需要测量其频率特性

C.计权等效连续感觉噪声级用于评价航空噪声

D.等效连续A声级即将某一段时间内连续暴露的不同A声级变化,用能量平均的方法以A声级表示该段时间内的噪声大小

考点:环境影响评价工程师环境影响评价技术方法环境影响评价技术方法
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简述可摘局部义齿就位后应检查的内容。

题型:多项选择题

An old farmer spent all his life on his farm in the country in the southeast of England. One day he decided to visit the big city. Everything was new and strange to him, because he had never traveled to the city before.

The old farmer visited a lot of interesting places in the city.

He rushed into a large tall building and saw a lift. When he was watching, an old woman got into the lift and closed the door. After a while, the door opened again and a very perfect young girl came out.

The old farmer was very surprised, “What a funny little room!” He said to himself, “It’s magic. It can change an old woman into a young girl. The next time I come here, I’m going to bring my wife to take the lift. ”

小题1:The old farmer lived ____.

A.near the city

B.in the city

C.in the southeast of England

D.in a large tall building小题2:The old farmer decided ____ one day.

A.to visit a building

B.to visit a city

C.to visit a factory

D.to visit a farm小题3:The old farmer ____.

A.came to the city for the first time

B.had traveled to the city several times

C.found nothing new and strange in the city

D.only visited the large tall building小题4:When the old farmer was in a large tall building, he saw ____ get into the lift.

A.a young girl

B.an old man

C.his wife

D.an old woman小题5:From the passage, we can guess the old farmer ____.

A.knew the lift well

B.didn’t know anything about the lift

C.wanted to buy a lift

D.didn’t like the lift

题型:多项选择题

某分部工程双代号网络计划如下图所示,其关键线路有()条。

A.2

B.3

C.4

D.5

题型:多项选择题

Maggie’s house is next to mine. We see each other _________.

A.a number of

B.a lot of.

C.a great deal

D.a great many

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患者右眼被啤酒瓶炸伤2小时,角膜缘处创口3mm,对合好,前房内少许积血,前房存在,其余窥不清,还应做何检查

A.缝合创口

B.X线摄片检查

C.B超检查

D.前房冲洗

E.包扎患眼

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