肾动脉( )
A．平第一腰椎高度起自腹主动脉B．左侧比右侧长C．除到肾以外无其他分支D．是腹主动脉唯一成对的脏支E．位于肾盂前方
参考答案：E
To be engineer is my dream. I'm going to study very .[ ]
A. an, hard
B. a, hard
C. an, hardly
D. a, hardly
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