可选择性货币政策工具指的是_______________。
A．再贴现
B．不动产信用控制
C．公开市场业务
D．存款准备金政策
参考答案：B
When we got to the stadium hurriedly, the leaders________their speeches and the performance __________.
A. have finished; began B. had just finished; had begun
C. had just finished; was about to begin D just finished; began
造成ABO定型错误的原因有哪些？
