慢性胸髓横贯性损害引起（）。
A.四肢瘫
B.双下肢弛缓性瘫
C.双下肢痉挛性瘫
D.偏瘫
E.一侧下肢痉挛性瘫
参考答案：C
It is very kind _______ you to help me with my housework. It is hard _____me to do all
the work.
A．of, for
B．for, of
C．of, to
D．to, for
