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【单选题】

Every precaution must be taken to avoid ().

A、sparking being taking place

B、to spark taking place

C、sparking to be taken place

D、sparking taking place

更多“Every precaution must be taken to avoid ().”相关的问题
第1题

A、make rounds to inspect the ship at appropriate interals  B、take every precaution to prevent pollution of the environment by the ship  C、enter, in the bell book, all important events affecting the ship  D、offer assistance to ships or person in distress  

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第3题

A、every day  B、every week  C、every month  D、every year  

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第4题

A、every two years  B、every three years  C、every year  D、every four years  

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第5题

A、every half a month  B、every month or two  C、every half a year  D、every year  

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第6题

A、every six months  B、every year  C、every one and half year  D、every two years  

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第7题

A、Every 5 minutes  B、Every 90 seconds  C、Every 60 seconds  D、Every 30 seconds  

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第8题

A、every month  B、every two months  C、every three months  D、A or B  

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第9题

A、once every crankshaft revolution  B、once every two crankshaft revolutions  C、once every piston stroke  D、twice every piston stroke  

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