电机车的小修间隔为()个月一次。
A、1
B、2
C、3
D、4
参考答案:C
The speaker raised his voice but still couldn’t make himself _____.
A.hear
B.to hear
C.hearing
D.heard
下列哪项不属于肾前性少尿
A.休克
B.脱水
C.右心衰
D.糖尿病肾病
E.肾动脉狭窄