承受集中荷载的钢筋混凝土板每米宽内分布钢筋的截面面积不小于受力钢筋截面面积的比例是下列哪项()
A.10%
B.15%
C.20%
D.25%
参考答案:D
You'd better use another dictionary, because ________ page of the dictionary is torn,
and ________ cover looks old. [ ]
A . the; the
B. a; a
C. a; the
D. the; a
复烤烟叶的水分规定为()。