99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

單項選擇題

An inflatable liferaft is thrown into the water from a sinking vessel. What occurs automatically after the painter trips the CO2 bottles to inflate the raft?().

A.The sea anchor deploys
B.The floor inflates
C.If upside down,the craft rights itself
D.The painter detaches from the raft

微信掃碼免費搜題