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【单选题】
下面四句话中没有语病的一句是A.
大家都讲卫生，我们的健康和疾病就有了保障。
B.
杨凌和边走，他告诉他获奖了。
C.
为了防止大灾之后无大疫，医务人员日夜巡查，吃住都在堤岸上。
D.
全班同学认真听取并讨论了班委会制定的本学期活动计划。
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举一反三
【多选题】For the function , which of the following computation(s) is/are CORRECT?
A.
B.
C.
, when .
D.
, when .
【单选题】Which of the following ha s a function that is opposite of a "kiln"?
A.
oven
B.
furnace
C.
freezer
D.
stove
【单选题】Which is/are the function(s) of Letter of Credit?
A.
The L/C solves the possible problems arising from the distrust between the seller and the buyer.
B.
Under L/C, the seller can feel assured that so long as he has made the delivery of the goods and got the required documents he can get the payment of the goods in time.
C.
The buyer can also feel at ease that he can get the shipping documents at the same time when he effects the payment of the goods.
D.
All the above.
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