下列气体排放到大气中,不会造成空气污染的是 A.NO2 B.SO2 C.N2 D

题型:选择题

问题:

下列气体排放到大气中,不会造成空气污染的是

A.NO2

B.SO2

C.N2

D.Cl2

考点:室内空气污染大气污染、改善大气质量水的净化与处理水体污染、爱护水资源
题型:选择题

How do you usually buy what you need, shopping on line or going out to shop in person? With the help of the Internet, shopping is ___小题1:___(easy) than before. We can just click our mouse to choose the items we like, pay for them online, and the shopping ___小题2:___(finish). It is easy and quick. It helps save money, too. We can save thousands a year if we compare the prices of similar items before deciding ___小题3:___ to buy.

However, there are always traps in shopping online. If we are ___小题4:___(care), we may get into trouble. For example, we may find the color of the item different from ___小题5:___ in the picture online. Sometimes, the size of the item we receive can be too big ___小题6:___ too small. ___小题7:___(avoid) such troubles, we should compare similar items on different online stores and pay more attention to what other customers say. From their comments, we can know better ___小题8:___ an item’s color, size as well as ___小题9:___ shortcomings. In this way we increase our chance of buying ___小题10:___ more satisfactory item.

题型:选择题

施工总承包合同通用条款中包括( )。

A.组成合同的文件

B.工程概况

C.材料设备供应

D.工程承包范围

题型:选择题

办公室更改电话号码,可用( )公布周知.

A.通知

B.通告

C.启事

D.布告

题型:选择题

保安员在查验货物出库单时,应着重查验单据中写明的()。

A.货物的外形

B.货物的名称

C.货物的规格

D.货物的数量

E.货物的型号

题型:选择题

通常被称为环氧玻璃钢的材料由()主要成分组成。

A、玻璃纤维;

B、环氧树脂;

C、固化剂;

D、偶联剂;

E、石英砂;

F、玻璃。

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