图示结构中,AB为刚性梁,CD为弹性杆,在B点作用铅垂荷载P后,测得CD杆的轴向应变为嚣,则月点的垂直位移为()。
A.A
B.B
C.C
D.D
参考答案:B
解析:
I regreted_________him the news that our team had failed.
A.to tell
B.telling
C.having told
D.to have told
南齐______整理的《刘涓子鬼遗方》是现存最早的外科专书。