船舶自由摇摆周期与（）无关。
A．摇摆的幅度
B．排水量
C．初稳性高度
D．惯性矩
参考答案：A
________ I want to know, sir, is whether you have any goods in that bag _______ I should know about.
A．What; that
B．What; what
C．That; what
D．That; where
阿托品无效的有机磷中毒症状是( )。
A．腹痛、腹泻
B．瞳孔缩小
C．呼吸困难
D．出汗
E．骨骼肌震颤
