燃料气罐吹扫介质是()。
A、空气
B、氮气
C、风
D、蒸汽
参考答案:D
The man is very ill and he has _______.
A.operate on
B.to be operated on
C.to operate
D.being operated on
太阳蓄水证可见()
A.发热恶寒,无汗,脉浮紧
B.发热恶风,汗出,脉浮缓
C.小腹胀满,小便不利
D.小腹胀满,小便自利
E.腹痛拒按,大便秘结