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【单选题】
某企业拟以“2/10，n/30”的信用条件购进原料1 000万元，则企业丧失现金折扣的机会成本为( )%。A.
2
B.
10
C.
30
D.
73
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举一反三
【单选题】Only when he had done it______ that he had made a mistake.
A.
he then realized
B.
he realized
C.
did he realize
D.
before he realize
【多选题】III 型超敏反应中引起血管通透性增加的因素有 :
A.
中性粒细胞浸润
B.
C3a 、 C5a 引起嗜碱性 粒 细胞、肥大细胞脱颗 粒， 释放血管活性 胺 类物
C.
血小板活化 ， 释放血 管 活性 胺 类物质
D.
血小板聚集 ， 微血栓成 ， 导致局部缺血、出 血
【单选题】Only when he had done it __________ to understand that he had made a mistake.
A.
had he come
B.
he came
C.
he had come
D.
did he come
【判断题】货代公司雇佣货车司机上门向客户提货,在客户的工厂大楼下,货车司机被大楼保安要求支付停车费(入闸费)20元。货代公司有权向客户收取这20元的停车费用。
A.
正确
B.
错误
【简答题】A．It was discovered by Spencer after he had made many experiments on microwaves. B．It was discovered by Spencer accidentally, when he was scientific experiments. C．It was discovered by Spencer,...
【简答题】根据下列条件，回答 1～3 题： 第 1 题
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