问题
多项选择题
下列符合消声器安装的一般规定的是( )。
A．消声器安装前应保持干净，做到无油污和浮尘
B．两组同类型消声器宜直接串联
C．现场安装的组合式消声器，消声组件的排列、方向和位置应符合设计要求
D．消声器、消声弯管均应设独立支、吊架
E．消声器的安装位置、方向应正确，与通风管的连接应严密，不得有损坏和受潮
答案
参考答案：A,C,D,E
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下列符合消声器安装的一般规定的是( )。
A．消声器安装前应保持干净，做到无油污和浮尘
B．两组同类型消声器宜直接串联
C．现场安装的组合式消声器，消声组件的排列、方向和位置应符合设计要求
D．消声器、消声弯管均应设独立支、吊架
E．消声器的安装位置、方向应正确，与通风管的连接应严密，不得有损坏和受潮
参考答案：A,C,D,E
| 用所给单词的正确形式填空，每空只能用一次。 | |
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| In these years, computer games have been more and more 1 in many cities and towns. A lot of small 2 along busy 3 have changed into computer game houses in order to get more money. These places are always crowded with people especially young boys. In the computer game houses, people spend a lot of money 4 with the machines. It’s hard for one to win a computer, but can make progress( 进步)after 5 again and again. People have a kind of gambling psychology(赌博心理)when they play computer games. The more the lost, the 6 they want to win. For school boys, they have no time for their 7 . When class 8 , they run to the nearby computer game houses. Some of them can get enough money from their parents, but some of them are not 9 enough to get the money. A few of them begin to take away othe 10 money and become bad boys. |