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【单选题】
下列药物中属于氟喹诺酮类抗菌药的是（）A.
萘啶酸
B.
4-喹诺酮
C.
呋喃唑酮
D.
环丙沙星
E.
吡哌酸
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举一反三
【单选题】_____was expected, he broke his promise once more, ______left his friends down.
A.
It; which
B.
As; which
C.
It; as
D.
Which ;which
【简答题】实训内容: 审核合同条款 样品跟单 生产跟单 包装跟单 运输跟单
【单选题】____ was expected, he broke his promise once more, ____ let his parents down. [ ]
A.
It; which
B.
As; which
C.
It; as
D.
Which; which
【简答题】A．It is the best city he's ever visited. B．It was worse than he had expected. C．It is difficult to get around in the city. D．The hotel service is terrible in the city.
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