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【单选题】
间接资料调查的首要原则是( )A.
系统性原则
B.
时效性原则
C.
相关性原则
D.
经济效益原则
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】We had _________ great fun at the charity party yesterday. I have never had _________ more exciting experience.
A.
a, /
B.
/, a
C.
/, the
D.
the, a
【单选题】______ before we departed last weekend, we would have had a wonderful dinner party.
A.
Had they arrived
B.
Would they arrive
C.
Were they arriving
D.
Were they to arrive
【单选题】It was in the hall _____ we usually have dinner _____ we had a dancing party last night. [ ]
A.
where; that
B.
that; where
C.
where; which
D.
which; where
【单选题】-----_______good time we had at the party last night! -----Yes. It was________ exciting party that I would never forget it.
A.
What a; such an
B.
How ; such
C.
What; so
【简答题】根据双键来分,脂肪可分为____和____。
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