If your father _ alive, how happy he would be to see youl [ ]
A. is
B. was
C. were
答案:C
我国的基础教育课程改革该怎样走向未来?
下列基底细胞癌的特点,正确的是()。
A.恶性程度较高
B.病灶较弥散
C.生长快
D.很早发生转移
E.可在反复破溃瘢痕的基础上癌变