酚醛铝箔复合风管安装中,垂直安装风管的支架间距不超过()m,每根立管的支架不少于2个。
A、1.2
B、2
C、2.4
D、3
参考答案:C
根据句意及汉语提示填空。
小题1:We can’t ____ ____ ____(习惯)the weather here because the wind is always strong.
小题2:I’ll help you, ____ ____(即使)I don’t sleep for a night.
小题3:I would like more time to _____ this problem _____ (仔细考虑).
小题4:You can ____ us ____ (打电话给……) when you get to Shanghai. We will meet you.
小题5:At the age of 5, my father ______ _____ _____ (对……感到满意) my good results at school.
使用撬杠作业时,()应可靠,并采取措施防止被撬物倾倒或滚落。
A.撬杠
B.支垫物
C.方法
D.措施