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【多选题】
火箭高速动能弹可以用于（）A.
反装甲武器
B.
舰艇防空
C.
反导武器
D.
发射航天飞行器
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举一反三
【单选题】The following main points are arranged in _____ order. I. The first major type of environmental pollution is land pollution. II. The second major type of environmental pollution is air pollution. III....
A.
topical
B.
problem-solution
C.
chronological
D.
spatial
【单选题】Pollution is the major ________ of the global warming. [ ]
A.
cause
B.
reason
C.
excuse
D.
event
【简答题】Pollution is a major (n. 恐吓;威胁 ) to the environment.
【单选题】Soil pollution is a major concern in _______ countries.
A.
industrial
B.
developing
C.
industrial and developing
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