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问题
单项选择题
左侧精索静脉回流到()
A.左肾静脉
B.腹腔静脉
C.左髂外静脉
D.左腹壁浅静脉
E.左髂内静脉
答案
参考答案:
A
选择题
Great changes have taken place since then in the factory _____ we are working.
A. where
B. that
C. which
D. there
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判断题
粗破机的排矿口尺寸在圆周部分上指的是小口。
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