单项选择题
The Repairer shall be relieved of all obligations under these terms and conditions caused by such all following matters except（）.
A.act of God B.lock-out C.strike D.paint fire
单项选择题 The purpose of the tripping line on a sea anchor is to（）.
单项选择题 The margin plate is the（）.
单项选择题 The Customer agrees to pay the full invoiced price，plus all other amounts payable to the（）Repairer under these terms and conditions，relating to or arising out of the Works for the Customer.
