单选题The crankshaft is of the semi-built type, with the （） being shrunk into the forged or cast steel crank throws.AjournalBcrank-pinCmain bearingDlarge end of connecting rod
单选题
The crankshaft is of the semi-built type, with the （） being shrunk into the forged or cast steel crank throws.
A
journal
B
crank-pin
C
main bearing
D
large end of connecting rod
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