现吊物用钢丝绳多采用()形式钢丝绳。
A、点接触
B、线接触
C、面接触
参考答案:A
Our teacher is_______to us. She is our_______, too.[ ]
A. friendly; friendly
B. friend ; friend
C. friendly ; friend
D. friend ; friendly
简述诸葛亮如何使用空城计兵退司马懿(95回)