气管套囊充气过量可能会产生()
A.气管粘膜缺血、炎症
B.气管粘膜溃疡
C.气管狭窄
D.气管软化、坏死、破裂
E.声音嘶哑
参考答案:A, B, C, D, E
Selecting a mobile phone for personal use is no easy task because technology __________ so rapidly.
A.is changing
B.has changed
C.will have changed
D.will change
德国古典哲学是马克思主义哲学的直接理论来源。( )