胸外心脏按压,正确操作时,动脉压可达()
A.70~80mmHg
B.100mmHg
C.60~70mmHg
D.80~100mmHg
E.40~60mmHg
参考答案:D
—Where is Mr. Read?
—He _______ to the wash room. [ ]
A. goes
B. will go
C. was going
D. has gone
()是指利用交通工具一次向单一目的地长距离地运送大量货物的移动。
A.运输
B.配送
C.输送
D.物流