单项选择题
A.nip B.nap C.gap D.lip
The external circumference of a pair of main bearing sh...
单项选择题The external circumference of a pair of main bearing shells is slightly （） that of the bore of the housing which receives themWhat’s the meaning of “that” in the sentence above?
A.less than B.lighter than C.larger than D.smaller than
单项选择题The external circumference of a pair of main bearing shells is slightly （） that of the bore of the housing which receives them Whats the meaning of “that” in the sentence above？
The exhaust gases for a new engine should be （） when th...
单项选择题The exhaust gases for a new engine should be （） when the engine operates under full load.
A.smoky B.a little bit dense C.visible D.almost invisible
