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【单选题】
非排他性是公共物品的特征之一，下列情况哪个属于非排他性：A.
不能排除竞争者也生产这种产品
B.
不能排除私人企业也生产这种产品
C.
增加一名消费者不需要排除其他消费者对它的消费
D.
不能排除不付费的消费者也享用这种物品
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反馈参考答案：
举一反三
【简答题】石方爆破的工序有：打孔放药、（）、排渣。
【单选题】The old man told the little boy that the sun in the east and sets in the west. [ ]
A.
rise
B.
rises
C.
rose
D.
rising
【单选题】The old man told the child ______ noisy.
A.
not be
B.
not to be
C.
to not be
D.
be not
【单选题】The old man told the child ______ noisy. A. not be B. not to be C. to not be D. be not
A.
not be
B.
not to be
C.
to not be
D.
be not
【单选题】The old man told the boys ______ football on the street. [ ]
A.
not play
B.
not to play
C.
don't play
D.
didn't play
【单选题】( )The old man told the boy ________ noisy.
A.
not being
B.
not to be
C.
to not be
D.
being not
【单选题】The old man told the boy ______ noisy. B. C. D.
A.
not being
B.
not to be
C.
to not be
D.
being not
【简答题】石方爆破的工序有( )。(6.0分)A. 打孔放药; B. 引爆; C. 排渣; D. 防护。
相关题目：
【单选题】( )The old man told the boy ________ noisy.
A.
not being
B.
not to be
C.
to not be
D.
being not
参考解析：
知识点：
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