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【单选题】
露天爆破震动既增加了边坡的滑动,又破坏了边坡岩体,降低了岩体的强度,从而()了边坡的稳定性。
A.
增强
B.
保证
C.
降低
相关题库：露天采石场安全生产管理考试题库
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参考答案：
举一反三
【单选题】下列关于药物稳定性加速试验的叙述中，正确的是
A.
试验温度为40±2℃
B.
进行加速试验的供试品要求三批，且为市售包装
C.
试验时间为1、2、3、6个月
D.
试验相对湿度为75%±5%
E.
A、B、C、D均是
【单选题】下列化合物：相对稳定性次序为（） A.HCHO B.CH3CHO C.CH3COCH3 D.C6H5COC6H5
A.
A＞B＞C＞D
B.
A＞C＞D＞B
C.
D＞C＞B＞A
D.
D＞A＞B＞C
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s surface, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s surface
D.
it has caused many visitors to injure themselves
相关题目：
【单选题】下列关于药物稳定性加速试验的叙述中，正确的是
A.
试验温度为40±2℃
B.
进行加速试验的供试品要求三批，且为市售包装
C.
试验时间为1、2、3、6个月
D.
试验相对湿度为75%±5%
E.
A、B、C、D均是
【单选题】下列化合物：相对稳定性次序为（） A.HCHO B.CH3CHO C.CH3COCH3 D.C6H5COC6H5
A.
A＞B＞C＞D
B.
A＞C＞D＞B
C.
D＞C＞B＞A
D.
D＞A＞B＞C
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s surface, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s surface
D.
it has caused many visitors to injure themselves
参考解析：
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