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【多选题】
影响交织区通行能力的影响因素主要包括以下哪几方面?A.
交织区长度
B.
交织区车道数
C.
交织流量比
D.
坡度
E.
信号配时
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反馈参考答案：
举一反三
【单选题】肾维持机体水平衡,主要是通过调节下列哪项活动实现的( )。
A.
肾小球滤过率
B.
近曲小管和髓袢重吸收水量
C.
肾小管的分泌
D.
远曲小管和集合管重吸收水量
E.
球管平衡
【单选题】肾脏维持机体水平衡,主要是通过调节下列哪项活动实现的
A.
肾小球滤过率
B.
肾小管的分泌
C.
近曲小管重吸收
D.
髓襻细段重吸收
E.
远曲小管和集合管重吸收水量
【单选题】For a monopoly, marginal revenue is less than price because
A.
the firm is a price taker.
B.
the demand for the firm's output is perfectly elastic.
C.
the firm can sell all of its output at any price.
D.
the firm must lower price if it wishes to sell more output.
【单选题】—We get knowledge __________ from books __________ from life.
A.
Yes, both are very important.
B.
either;or
C.
not only; but also
D.
neither;nor
【单选题】It is definite that new digital mobile phones have less radiation, but that does not ______ mean that they should be used without caution. [ ]
A.
obviously
B.
necessarily
C.
generally
D.
eventually
【简答题】构成定额的三要素
【单选题】Suppose the government imposes a price ceiling on gasoline that is less than the equilibrium price. As a result,
A.
the price of gasoline rises to the equilibrium price.
B.
there is incentive for buyers to undertake search activity.
C.
the supply of gasoline will increase and the supply curve will shift rightward.
D.
the demand for gasoline will decrease and the demand curve will shift leftward.
【简答题】构成定额的三要素是什么?
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