急性心肌梗死病人若需做择期手术,应在病情稳定多少时间后进行()
A.2周
B.3个月
C.6个月
D.9个月
E.1年以上
参考答案:C
The girl ____ a beautiful skirt has told me the news. Which is not right?
A.wearing
B.dressed in
C.in
D.having on
下列不属于电潜栗井下设备的是()。
A.离心泵
B.保护器
C.电缆
D.变压器