鼻咽纤维血管瘤常发生于以下哪个年龄段()
A.8~10岁
B.10~25岁
C.26~30岁
D.31~40岁
E.41~50岁
参考答案:B
解析:鼻咽纤维血管瘤最常见于青少年。
When ________ for his views about his teaching job, Philip said he found it very interesting and
rewarding.[ ]
A. asking
B. asked
C. having asked
D. to be asked
什么是生物药物素?