搜题
王老师:19139051760(拨打)
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第1题

4、 A car or automobile is composed of four sections, it is( ),( ),( ), and ( ).
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第2题

3、 Most automotive ignition switches incorporate four positions, they are off, ( ), ignition( ON ) and start.
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第3题

2、 There are four strokes in four-stroke engine, they are ( ),( ),( ) and( ).
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第4题

1、 Classified by the ways of cooling: the internal combustion engine can be divided into ( ) and ( ) based on the ways o
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