I have seven ______.[ ]
A. a fan
B. fan
C. fans
答案:C
螺内酯 ()
A.血管扩张剂
B.血管紧张素转换酶抑制剂
C.β受体激动剂
D.醛固酮拮抗剂
E.β受体阻滞剂
The panda is a kind of animal________ can be found only in China.[ ]
A. which
B. who
C. where
D. whose