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【单选题】
在下列的水土保持工作中,属于生物措施的是 [     ]
A.
打坝淤地
B.
修筑梯田
C.
植树种草
D.
兴修水库
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【简答题】职业健康监护(occupational health surveillance)
【单选题】与半刚性基层施工程序相比,沥青混凝土路面施工不需要( )
A.
拌合
B.
C.
D.
养生
【简答题】The Occupational Safety and Health Administration (OSHA) was formed in 1971, and it was placed under the control of ______.
【简答题】职业病(occupational disease)
【单选题】B2C电子商务是按照以下哪个标准分类的结果:
A.
使用的网络类型
B.
数字化程度
C.
主体的性质
D.
主体所属关境
【单选题】For ______ football players, injuries are an occupational hazard which seems unaviodable.
A.
academic
B.
professional
C.
dramatic
D.
additional
【单选题】The main idea of this passage is that______.
A.
culture shock is an occupational disease
B.
culture shock is caused by the anxiety of living in a strange culture
C.
culture shock has peculiar symptoms
D.
it is very hard to cope with life in a new setting
【简答题】Hazar危害的定义
【简答题】职业病(occupational illness)
【简答题】职业病(occupational disease)