王某用自己所有的一头奶牛作为质押向李某借款，王某将奶牛交付给李某，借款合同到期后，王某按照合同约定还本付息，李某将奶牛交还王某，质押期间，李某共挤奶 100公斤，以下说法正确的是( )
A. 李某挤奶的行为构成不当得利
B. 李某挤奶的行为构成侵权行为
C. 李某挤奶的行为是合法行为
D. 李某挤奶的行为构成违约行为
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某中外合资经营企业的合营期限届满，以下说法正确的是( )
A. 合营企业应该报审批机构批准后解散
B. 合营企业宣告解散的，应当组成清算委员会或者指定1—2名清算人员进行清算
C. 合营企业可以聘请国外的注册会计师担任清算委员会成员
D. 清算委员会制定的清算方案必须经董事会会议通过
It seems to me that the main requirement of an international language is that it ______ easily learned.
A. can be
B. be
C. must be
D. is
We had better have our meals ______.
A. when our work is over
B. at the same time each day
C. when the meal is still hot
D. when we go back home
I remember ______ the novel some years ago It was very interesting.
A. to read
B. reading
C. read
D. to have read
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