当滑裂面通过无粘性土,坝坡部分浸入水中时会产生什么形式的滑裂面。()
A、折线
B、直线
C、曲线
D、复合
参考答案:A
Mother said that Mike could eat two of ten oranges and that the rest _______ left for Tom and Betty.
A.were
B.was
C.be
D.being
石墙要分层砌筑,每层高300~400mm,每层中间隔()m左右砌与墙同宽的拉结石。
A.0.5
B.1.0
C.1.5
D.2.0