單項(xiàng)選擇題The diameters of the crankpins should be measured using ().

A.a micrometer
B.a bridge gauge
C.a spanner
D.a wrench


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2.單項(xiàng)選擇題The diameter of the crank-pins should be measured with a ().

A.salinometer
B.thermometer
C.tachometer
D.micrometer

4.單項(xiàng)選擇題The design of the connecting rod large end bearing is similar to that of the mainbearings Whats the meaning of "that" in the sentence above?()

A.the connecting rod
B.large end bearing
C.the main bearing
D.the design

5.單項(xiàng)選擇題The design of () is similar to that of the main bearing.

A.the block bearing
B.the camshaft bearing
C.the connecting rod small end bearing
D.the connecting rod large end bearing