管型尿是指12小时尿沉渣管型超过
A.5000个B.6000个C.7000个D.8000个E.10000个
参考答案:A
Your story is perfect;I've never heard________before.[ ]
A.the better one
B.the best one
C.a better one
D.a good one
汽车空调属于电气系统的故障是()。
A.风机不运转
B.电磁阀卡住
C.电磁离合器打滑
D.热力膨胀阀损坏