旋风筒是由()、()、()、()、()及()组成。
参考答案:圆柱体;圆锥体;进口管道;出口管道;内筒;下料管道
I like the sofa we’ve found in the shop. In my opinion, it is a perfect ________ for the furniture (家具) in our sitting room.
A.game
B.match
C.suit
D.fit
两个数相除商是40,如果在被除数里再加一个除数,商是______.