单项选择题 套筒挤压连接主要用于竖向钢筋连接、横向及其它方向的较大直径带肋钢筋的连接（   ）A. 正确B. 错误

不定项选择 ‎产出经常表示为完成的工作量而结果是各种产出的真实影响‌

单项选择题 Carriers who issue a proper bill of lading are exempt from liability from damages that arise from: A、acts of war. B、negligence of the master in the navigation of the ship. C、quarantine restrictions. D、All of the above.