—Oh, they are all very beautiful. I can't decide ______.
A:to choose which one
B:which one to choose
C:choose which one
D:to buy it
著名的“地上河”位于黄河的上游.( )(判断对错)
下列各句中,没有语病的一项是( )
①“东方红1号”发射成功 ②我国第一颗原子弹爆炸成功
③科教兴国战略的提出 ④袁隆平首次育成籼型杂交水稻