普通铅蓄电池内部故障常见有(),(),(),()。
参考答案:极板硫化、活性物质大量脱落、自行放电、内部短路。
留置导尿管的护理哪项不正确
A.及时倾倒尿液
B.每天定时消毒 * * 口
C.每周更换集尿袋
D.每周更换尿管1次
E.鼓励多饮水
—Why did the police _____ the crowd?
—Because the president’s car ____ in the street.[ ]
A. break down; went wrong
B. break up; out of order
C. break down; broke up
D. break up; broke down