为下列句子排序。
(____)A.Sorry,I don't like pears.
(____)B.Sure.Here you are.
(____)C.Have some pears.
(____)D.Can I have some grapes?
(____)E.Thanks.I like pears.
填一填。
白天,高高挂在天空的红色火球是____;晚上,高高挂在天空的圆盘是____,闪闪发亮的是____。
若sinα<0且tanα>0,则α是( )
青蛙既能在水中生活,又能在陆地生活,所以是两栖动物.(判断对错)