（） are generally formed in the frame of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end bearing.

[单选题]Doors are generally formed in the （） of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end bearing.A . bedplatesB . columnsC . cylinder blocksD . safety ca

[单选题]The bore of each cylinder is formed in a liner which can be （） when worn out.A . weldedB . replacedC . drilled againD . bored

[单选题]（） are formed by abrasive particles entering the bearing and scoring the shaft.A . GroovesB . RecessesC . RidgesD . Ni

[单选题]When a bridge transmits an Ethernet frame， the Ethemet frame has ( ) .A.the

[单选题]________________[A] generally[B] almost[C] hardly[D] not

[单选题]Generally the function of lubrication is to form of a film of lubricant between any two surfaces that have relative （）, so that surfaces dont get touch with each other.A . gravityB . motionC . ratioD . density

[单选题]frame表示（）。A．符号B．大小C．秒D．帧

[单选题]frame表示（）。A . 符号B . 大小C . 秒D . 帧

[单选题]The(74) program is generally translated to an object program, which is in a form. directly understandably by the computer.A．transferB．assembleC．sourceD．compile

[单选题]G．enerally speaking，______according to directions，the drug has no side-effect.A． when takingB． when takenC． when to takeD． when to be taken