水泥混凝土配合比有单位用量和相对用量两种表示方法。( )
参考答案：对
解析： 水泥混凝土配合比有单位用量和相对用量两种表示方法。
— William, please remember to the photo taken in Canada here when you come to school tomorrow.
I'd like to have a look.
— OK. I'll introduce something about it to you myself. [ ]
A. take
B. pass
C. bring
D. carry
圈梁在门窗上部通过时，可兼起过梁的作用。( )
