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【单选题】
根据盖伦的三元（灵）气理论，医生治病的方法之一是A.
放血
B.
输血
C.
服用血制品
D.
输入营养液
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举一反三
【单选题】______ seen such a magnificent city as Beijing.
A.
I before never have
B.
Never have before I
C.
Never before have I
D.
Before never have I
【单选题】I have to collect ______ about the topic before I start writing the book.
A.
a few more materials
B.
a few more material
C.
a little more materials
D.
a little more material
【简答题】目前认为曹丕的(《 》)是我国最早最完整的七言诗。
【简答题】下列系统中，（ ）不是低压配电系统的接地形式。
【简答题】I began to fish before memorybegan, _______ I know I have always fished. A. sofar B. so as far as C. as far as D. so
【简答题】在低压配电系统的接地形式中, TN 系统又可分为 系统, 系统, 系统。
【单选题】听力原文：Haven't we eaten here before? (A) Yes, it seems familiar. (B) No, I ate before I came. (C) As long as it's before noon. (15)
A.
B.
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