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【多选题】
DRIs 包括()。A.
平均需要量（ EAR ）
B.
推荐摄入量（ RNI ）
C.
适宜摄入量（ AI ）
D.
可耐受最高摄入量（ UL ）
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反馈参考答案：
举一反三
【单选题】听力原文：When can you send me the proofread document? (A) Yes, you have two pieces of mail. (B) In a minute. (C) For three hours. (29)
A.
B.
C.
【简答题】典型金本位制度下,( )是汇率的决定因素。
【单选题】I have two pieces of news ________.
A.
to be told you
B.
to tell you
C.
telling you
D.
to have told you
【简答题】You have two pieces of luggage. One black suitcase and one leather bag. Am I right?
【单选题】The airline only allows two pieces of luggage. You ___ pack too much or you will have to take it out at the airport!
A.
had better not
B.
better not
C.
had not better
【单选题】I have no paper with me now. Could you lend me ______ ?
A.
two pieces of papers
B.
two paper
C.
two pieces of paper
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