A. Where's B. Is C. How many D. is E. Yes
小明的爸爸在下个路口____遇到红灯
“鱼儿离不开水”,下列不属于鱼类适应水生生活的特征是( )
下列式子中32a,1x+y,aπ,4a2﹣b,3a-2b5中整式的个数是( )