单项选择题
PSC officers will come on board for(检查)()next Monday.
A.inspect B.inspection C.inspector D.inspected
单项选择题 They will take measures against (海盗)()and pilferage.
单项选择题 ()(降一点儿)the gangway, please.
单项选择题 Put the()(防鼠挡)on the lines.