①皑皑____
A.细流
②涓涓____
B.雪山
③滔滔____
C.飞瀑
④帘帘____
D.江水
下列化学实验操作中,不正确的是( )
Thanks to the robots, the human reporters do not have to spend a lot of time ________ boring numbers and information.
十二月,我国大部分地区处于哪个季节?( )