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【多选题】
柱式体系采煤法一般特点：（）。A.
在煤层内布置一系列宽为5～7m的煤房
B.
采房时矿山压力显现较和缓，用锚杆支护工作空间，支护较简单
C.
采煤用爆破或连续采煤机配套设备，采煤在一组房内交替作业
D.
在采煤工作面两端，一般各有一条回采巷道
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【简答题】It is important that the hotel receptionist __________that guests are registered correctly.
【简答题】Why is the envelope registered stamped and addressed?For ______.
【简答题】Attention is paid on the necessity that all members of the society ______. A) be registered B) shall be registered C) will register D) should register
【单选题】A politician who is running for the office of premier in a state with 3 million registered voters commissions a survey. In the survey, 53.6% of the 5000 registered voters interviewed say they plan to ...
A.
3 million registered voters in the state.
B.
5000 registered voters interviewed.
C.
53.6 % of, or 2680, voters interviewed who plan to vote for him.
D.
46.4% of, or 2320, voters interviewed who plan not to vote for him.
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