—What _____ these?
—They're oranges. [ ]
A. am
B. is
C. are
D. be
答案：C
应在模板安装后进行的是（）。
A.楼板钢筋的绑扎
B.柱钢筋的绑扎
C.梁钢筋的绑扎
D.墙钢筋的绑扎
