肺栓塞所导致的呼吸衰竭,最主要的机制是
A.肺泡通气不足
B.弥散障碍
C.通气/血流比例失调
D.氧耗增加
E.肺内功—静脉解剖分流增加
参考答案:C
—How do you find the new book by JK Rowling ?
—________I guess she is out of her talent .
A.With the help of her mother
B.By accident
C.very boring
D.In the library
RLC有三种工作模式,它们分别是()、()、();