单选题An acceptable means of tightening connecting rod and main bearing cap bolts is to measure the （） Ⅰ.torque applied to each nut and bolt assembly Ⅱstretch of each nut before and after tighteningAⅠonlyBⅡ onlyCboth Ⅰ and ⅡDneither Ⅰ nor Ⅱ
单选题
An acceptable means of tightening connecting rod and main bearing cap bolts is to measure the （） Ⅰ.torque applied to each nut and bolt assembly Ⅱstretch of each nut before and after tightening
A
Ⅰonly
B
Ⅱ only
C
both Ⅰ and Ⅱ
D
neither Ⅰ nor Ⅱ
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