Ⅱ型呼吸衰竭可见于()
A.中叶综合征
B.结节病Ⅰ期
C.急性间质性肺炎
D.原发综合征(肺结核)
E.重症肌无力
参考答案:E
下列命题中,为真命题的是( )
A.5>3且-3<0
B.若A∩B=φ,则A=φ
C.方程(x+2)2+(y-1)2=0的解为x=-2或y=1
D.∃x∈R使得x2=-1
Last year, we ______ an English play Pocahontas on the stage and we all enjoyed ourselves a lot.
A.put on
B.put up
C.put away
D.put into