关于丛集性头痛哪一项错误（）
A.男性多见
B.先兆症状
C.Horner征
D.夜间发作多见
E.泼尼松治疗有效
参考答案：B
The river, ____ are covered with trees, is very long.
A．which banks
B．of which banks
C．whose the banks
D．the banks of which
春天不能吃辣的。
