先天性马蹄内翻足的病变在（）
A.跟骨
B.足舟骨
C.距骨
D.楔骨
E.骰骨
参考答案：C
The skirt is made of silk. It ______ so soft, I like it. [ ]
A. washes
B. is washed
C. is felt
D. feels
植物嫁接时承受接穗的植株被称为（）。
A.树木
B.穗木
C.砧木
D.苗木
