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【单选题】
属于单环β内酰胺类抗生素的是（）A.
舒巴坦
B.
氨曲南
C.
克拉维酸
D.
甲砜霉素
E.
亚胺培南
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皮皮学刷刷变学霸
举一反三
【单选题】A firm has the long-run cost function C(q) = 7q2 + 175. In the long run, it will supply a positive amount of output, so long as the price is greater than
A.
$70
B.
$148
C.
$35
D.
$75
【单选题】关于行政诉讼和民事诉讼的区别,下列说法错误的是( )
A.
民事诉讼中，被告享有反诉权，但行政诉讼的被告无此项权利
B.
民事诉讼可以调解结案，但行政诉讼不适用调解
C.
民事诉讼通常实行“谁主张，谁举证”的规则，行政诉讼则由被告证明其行政行为的合法性
D.
以上皆为错误
【单选题】关于行政诉讼和民事诉讼的区别，下列说法错误的是（ ）
A.
民事诉讼中，被告享有反诉权，但行政诉讼的被告无此项权利
B.
民事诉讼可以调解结案，但行政诉讼不适用调解
C.
民事诉讼通常实行“谁主张，谁举证”的规则，行政诉讼则由被告证明其行政行为的合法性
D.
以上全部错误
【单选题】In a monopoly in the long run:
A.
economic profits will be eliminated by the entry of rival firms.
B.
economic profits will be reduced but not eliminated by the entry of rival firms.
C.
entry by other firms will not occur.
D.
the price will be the same as in a perfectly competitive market.
【简答题】Whenever he has trouble in study, he always tries, _____, to get help from his teachers and classmates. Asomehow Banyhow Cno matter how Danyway
【单选题】Difficult as it is, English study is in the long run______to a learner in his or her career development.
A.
advantageous
B.
rewarding
C.
profitable
D.
earning
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