Because the tie bolts are so close to the crankshaft, some engines employ （）to hold the crankshaft main bearing cap in position instead of conventional studs and nuts.<br>A:through bolts<br>B:jack bolts<br>C:tap bolts<br>D:fitted bolts

Because the tie bolts are so close to the crankshaft, some engines employ （）to hold the crankshaft main bearing cap in position instead of conventional studs and nuts.
A:through bolts
B:jack bolts
C:tap bolts
D:fitted bolts

出自：海船船员证

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