梁中配置受压纵筋后()。
A.既能提高正截面受弯承载力,又可减少构件混凝土徐变
B.加大构件混凝土徐变
C.只能减少构件混凝土徐变
D.能提高斜截面受剪承载力
参考答案:A
现代社会教育有哪些特点?
The old man didn't know when the house caught fire. [ ]
A. how to do
B. how to do it
C. what to do
D. what to do it