单项选择题 There is a support ring between the cylinder block and collar of the cylinder liner, thus carrying both the liner and the cylinder coverIt also passes to the cooling bores and to the cover（）

单项选择题 The cylinder covers are secured by eight elastic holding down arranged in four pairs（）

单项选择题 With No~1 and No~2 alternators running in parallel and the KW loads equally shared, one alternator is drawing much higher current than the other.What does this indicate?（）