——She's seldom asked to do housework at home, she?—— . Her parents are very busy with their work, so she has to do the laundry every day.
A:has; Yes
B:hasn't; No
C:is; Yes
D:isn't; No
黄河孕育了灿烂的中华文明,但其身体上也存在许多“病症”。 有关黄河流域开发整治的正确方向是( )
春秋战国时期出现“百家争鸣”局面的主要原因是( )