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【单选题】
巷道的围岩稳定性分为五类，Ⅰ类是指()A.
非常稳定
B.
稳定
C.
中等稳定
D.
不稳定
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反馈参考答案：
举一反三
【简答题】各单位在更换旧账簿、启用新账簿时，应当填制账簿启用表。( )
【单选题】Tony told me he was tired _____ cutting grass for the whole morning and that he wanted to have a good rest. [ ]
A.
of
B.
in
C.
on
D.
with
【简答题】各单位在更换旧账簿、启用新账簿时,应当填制账簿启用表。
【单选题】It was now six and he was tired because he ______since dawn.
A.
has worked
B.
had worked
C.
worked
D.
was working
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