What does he _____ dinner? [ ]
A. has for
B. has at
C. have in
D. have for
答案：D
豨莶草能（）
A.解毒
B.降血压
C.杀虫
D.祛风湿
E.利关节
布尔型数据除局部变量外，默认的值是【 】。
