既能化湿、解暑，又能利水消肿的药物是
A．佩兰
B．香蔫
C．青蒿
D．藿香
E．砂仁
参考答案：B
— Is her sister a teacher or a student?
— _____________.[ ]
A. No, she's a teacher.
B. No, she isn't a teacher.
C. She's a student.
D. Yes, she's a teacher.
— Were there any sharks at the aquarium?
— No, . [ ]
A. they wasn't
B. they didn't
C. there weren't
D. there wasn't
