问题 多项选择题

下述通过试验确定单桩水平极限荷载的方法中正确的是()。

A.取单项多循环加载法的水平力H-时间t-水平位移y0曲线明显陡降的前一级水平荷载值

B.取水平力H-位移梯度会曲线上第二拐点对应的水平荷载值

C.取水平力H-最大弯矩截面钢筋拉应力σ曲线第一拐点对应的水平荷载值

D.取桩身折断或受拉钢筋屈服时的前一级水平荷载值

答案

参考答案:A, B, D

写句子

按要求写句子。     

1.看了这部电影,都留下了深刻的印象。(修改病句)

                                                                                                                                          

2.明亮的星星一闪一闪地挂在深蓝色的天空。(缩句) 

                                                                                                                                         

3.我们周围的一切不是都在起着变化吗?(改为陈述句)      

                                                                                                                                         

4.远远望去,父亲的菜园就像一块碧绿的翡翠,嵌在荒凉的山坡上。(用本句所用的修辞手法仿写句子)

                                                                                                                                        

5.校园里传出歌声。(扩句)

                                                                                                                                       

单项选择题