A:will rain
B:rains
C:is raining
D:rain
①3Hg ②Fe3+ ③SO3 ④3H2O
不等式1﹣2x<5的负整数解集是( )
若(2xa)2•(3ybx4)与x8y是同类项,求这两个单项式的乘积.
Look, you can see many _________ in the pool. And here is some ________for you to keep them.