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【简答题】
下表是国家对“饮酒驾车”和“醉酒驾车”的界定标准： 白酒、红酒和啤酒中均含有乙醇(俗称酒精，化学式为C 2 H 5 OH)，饮酒后酒精可进入人体血液中。请回答下列问题： (1)乙醇(C 2 H 5 OH)中碳、氢、氧元素的质量比是C﹕H﹕O＝_________； (2)饮酒会使人的神经系统过度兴奋或麻痹抑制，容易引发交通事故。某人饮酒后驾车，被交警发现，经测定其每100毫升血液中酒精含量为93毫克，属于________驾车。
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举一反三
【简答题】车床已经使用多年,存在控制箱线路混乱,导线绝缘老化,()、继电器触点严重烧损现象。
【单选题】He thinks himself somebody, but we think him _____.
A.
nobody
B.
anybody
C.
somebody
D.
nobody
【单选题】When we talk about someone’s personality , we mean the ways ________ he or she acts, speaks , thinks and feels that make that person different from others.
A.
how
B.
/
C.
which
D.
why
【单选题】She often thinks that he will succeed if he works hard，________? [ ]
A.
doesn't she
B.
won't he
C.
isn't she
D.
doesn't he
【单选题】We are all agreed that the plan is practical and feasible, but he thinks______ .
A.
not
B.
the reverse
C.
contrarily
D.
otherwise
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