问题描述：
[单选]
With VIT the start of injection may be（）as the engine load is reduced within a certain range．
A．advanced
B．retarded
C．relayed
D．cut off
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答案解析：无
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答案解析：无
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上一篇：With VIT unit the timing of fuel injection of an engine can be regulated automatically according to the（）．
下一篇：With the shell and cap assembled as for running， a check must be made that the clearance between the cap and the housing（）．
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