单项选择题
A.the block bearing
B.the camshaft bearing
C.the connecting rod small end bearing
D.the connecting rod large end bearing
单项选择题 The cylinders, with cooling jackets, are （） to the engine frame by eight tie rods.
单项选择题 The cylinder liners are made of （） and the cylinder surfaces are sometimes chromium-plated.
单项选择题 The cylinder is fitted with internal liner so that a water space is left （） the liner and the outer wall.