心脏叩诊呈普大型,不随体位改变常见于
A.肺源性心脏病
B.高血压性心脏病
C.扩张型心肌病
D.心包积液
E.主动脉瓣关闭不全
参考答案:C
I went to several libraries to____________ information about the scheme. [ ]
A. accomplish
B. accommodate
C. achieve
D. accumulate
汽机厂房开工动火前,必须测动火区域含氢量()%,并做好安全措施。
A、<2
B、<3
C、>3
D、>3.5