The population problem may be _______ one of the world today.
A:the most
B:most difficult
C:the greatest
D:more interesting
某天股票B的开盘价为10元,上午11:00下跌了1.8元,下午收盘时上涨了1元,则该股票这天的收盘价为( )
The doctor ________ me to spend several days at the seaside, so that I'll ________ soon.
下面每个表格中的四个数都是按相同规律填写的:
根据此规律确定x的值为( )