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举一反三
【单选题】针对下列生活中常见的安全事故，做法错误的是（ ）。
A.
发生火灾时，如果浓烟太大，可以用口罩或者毛巾捂住El鼻，身体尽量贴着地面前进或者爬行
B.
一旦发生烫伤，自己可以先在伤口处涂点牙膏、碱面等，以暂缓疼痛；若烫伤处有水疱，需要挑破，以防水疱变大
C.
当发现有人触电时，应尽快找到电闸，切断电源
D.
煤气泄漏时，应立即关闭煤气阀并开窗透气，且不能打电话或者使用打火机等，以免引发爆炸
【单选题】The History of Chinese Americans Chinese have been in the United States for almost two hundred years. In fact, the Chinese had business relations with Hawaii prior to relations with the mainland when...
A.
gold miners
B.
railroad builders
C.
steelworkers
D.
farmhands
【单选题】Many theories concerning the causes of juvenile delinquency (青少年犯罪) focus either on the individual or on society as the major contributing influence. Theories (56) on the individual suggest that child...
A.
contrarily
B.
consequently
C.
similarly
D.
simultaneously