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【单选题】
为虚数单位， 为虚数单位，若 则 的值为若则 的值为( )A.
B.
C.
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举一反三
【单选题】I am a soldier. _______? Are you a soldier, too? [ ]
A.
What's you
B.
What about you
C.
What you about
D.
How do you like
【简答题】请把上次实验课你配制的溶液的配制过程记录下来。
【简答题】一个直齿圆柱齿轮⚙️模数m=3,齿数z=30,它的齿顶圆直径是______mm,齿根圆直径是___mm,分度圆直径是______mm.
【简答题】The soldier was ___________ of running 选择The soldier was ___________ of running away when the enemy attacked. A) scolded B) charged C) accused D) punished
【单选题】A soldier can wait to board in ______________.
A.
the maternal waiting room
B.
the VIP waiting room
C.
the soldier’s waiting room
D.
the soft-sleeper waiting room
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