等腰三角形一腰上的高与腰长之比为1∶2，则等腰三角形的顶角为[ ]
A.30°
B.60°
C.150°
D.30°或150°
答案：D
简述肿瘤病人的异常代谢。
I would like to （） a flight to Paris on January 8 on Air France, First Class and round trip.
A. have book
B. book
C. want
D. have wanted
