问题
单项选择题
联氨管道系统应有（）的标志。
A.严禁明火；
B.严禁动火；
C.严禁靠近；
D.剧毒危险。
答案
参考答案：D
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联氨管道系统应有（）的标志。
A.严禁明火；
B.严禁动火；
C.严禁靠近；
D.剧毒危险。
参考答案：D
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| In recent years, people are more and more interested in computer games in many towns and cities. A lot of small shops and restaurants along busy 1 have changed into 2 game houses in order to get more money. These places are always filled with 3 especially young boys. In the computer game houses, people 4 a lot of money playing with a computer. It's 5 for one to win against a computer, but one can make progress after 6 again and again. The 7 they lost, the more they want to win when they play computer games. And at last they even can not live 8 it. The result is that some people don't want to 9 . Instead, they play in the computer houses for hours and hours. For school boys, things are 10 . They have no mind for their lessons. When class is over, they rush to the nearby computer house. | ||||
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