鼓膜松弛部穿孔多见于()。
A.单纯型中耳炎
B.骨疡型中耳炎
C.胆脂瘤型中耳炎
D.急性化脓性中耳炎
E.以上都是
参考答案:C
The party last weekend really gave me a lot of fun.So can we have ________ this weekend?
A.another
B.one
C.it
D.other
生理性高血容量不会削弱母体心血管的代偿功能。()