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【单选题】
With use of _____ to reduce emissions, the marginal benefit of an additional unit of pollution is the same for all polluters.A.
an environmental standard
B.
an emissions tax
C.
a tradable emissions permit
D.
an emissions tax or a tradable emissions permit
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Pauline did NOT collect ______ when she was a child.
A.
coins
B.
seashells
C.
stamps
D.
marbles
【单选题】What class did Pauline take during her honeymoon?
A.
drawing
B.
sand castle building
C.
flower arrangement
D.
cooking
【单选题】Pauline did NOT ______ this weekend.
A.
bike
B.
ride the subway
C.
drive
D.
take a taxi
【单选题】Which of the following did NOT occur?
A.
Pauline visited one of London's parks.
B.
Pauline went to the airport by taxi.
C.
Pauline contacted the airline by telephone.
D.
Pauline stayed the night in London.
【简答题】已知单位负反馈系统的开环传递函数为 , (1)用劳斯判据判断系统的稳定性;(2)若要求闭环系统特征方程根的实部均小于-1,试问开环增益K应该如何取值?(写出详细的解题过程,拍照上传)
【多选题】一般的( )拥有提作权限、( )拥有复核员权限,( )拥有管理员权限
A.
会计机构负责人,出纳,总经理
B.
出纳,会计机构负费人,总经理
C.
会计机构负责人,总经理,出纳
D.
出纳,会计主管,总经理
【简答题】所谓异步时序电路,是指触发器 。
相关题目：
【单选题】Pauline did NOT collect ______ when she was a child.
A.
coins
B.
seashells
C.
stamps
D.
marbles