安设及投入运转时要保持输送机的平、（）、（）、牢，并注意刮板链的松紧程度。
参考答案：直、稳
My brother is a football fan, he and his friends _____ make a soccer team next year. [ ]
A. is going to
B. are going to
C. be going to
口播评论的舆论作用？
