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【单选题】
一般在鸡群免疫新城疫疫苗()后,抽样采血测定HI效价。A.
3天
B.
7天
C.
10-14天
D.
20天
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举一反三
【简答题】( )程序的检查内容有指令检查,梯形图检查,软元件检查等。(A)PLC (B)单片机 (C)DSP (D)以上都没有A.B.C.D. D
【单选题】[6-29]The hull is divided up into a number of watertight compartments by ___.甲板和舱壁把船体分割成大量的水密舱室。
A.
inner bottom plating and longitudinals内底板和纵件
B.
decks and bulkheads 甲板和舱壁
C.
double bottom girders 双层底梁
D.
topside and hopper tank sloping plating and longitudinals 顶边和斜边舱板和纵件
【单选题】听力原文：Hi, Mary. How do you say is he doing these days? (A) I do a lot of work. (B) Well, he is fine. (C) I don't know how to do it. (14)
A.
B.
【单选题】— How is Mary getting on with her work? — Well, she could always _____ a good idea for increasing sales. [ ]
A.
turn out
B.
suffer from
C.
go by
D.
come up with
【单选题】[6-12]The hull is divided up into a number of watertight compartments by ___.
A.
inner bottom plating and longitudinals
B.
decks and bulkheads
C.
double bottom girders
D.
topside and hopper tank sloping plating and
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