板材在压弯是，所能允许的最小弯曲半径与（）无关。
A、压弯力的大小
B、弯曲线的方向
C、材料的厚度
参考答案：A
Not until he questioned the manager several times ___________ that the engineer-in-chief had gone to an important meeting.
A．did he tell
B．he told
C．was he told
D．he was told
实行国民待遇的意义在于保障（）.
A.在内国的外国人与内国人在民事权利地位平等
B.在内国的外国人与外国人之间民事权利地位平等
C.在内国的外国人与在外国的内国人间民事权利地位平等
D.排除对内国的外国人在民事法律地位方面采取低于内国人的歧视待遇
