必须优先抢救的急症有()
A.心脏骤停
B.窒息
C.大出血休克
D.开放性气胸
E.以上全是
参考答案:E
解析:A、B、C、D均为必须优先抢救的急症。
When _________ by the reporter about his generous action, he said: “__________ others can always be joyful.”
A.being interviewed; Helping
B.interviewed; To help
C.having interviewed; Help
D.interviewing; Having helped
X线管阳极靶面所用的物质必须具有()
A.低原子序数,高熔点
B.低原子序数,低熔点
C.高原子序数,高熔点
D.高原子序数,低熔点
E.低密度、高比重