我国历史上的第一个皇帝是( )
A．黄帝
B．尧
C．秦始皇
D．汉高祖
参考答案：C
She doesn’t suppose the prices will go down this week, _______?
A．does she
B．doesn’t she
C．won’t they
D．will they
1 11 21 31 ( )
A．41
B．39
C．49
D．51
