【C8】A．useB．differenceC．pointD．sense

A．useB．heatC．pressureD．form

【C16】A．instantB．timeC．pointD．minute

Many good friends have a lot in _______.A、similarityB、differenceC、commonD、usual

椭圆形的英语翻译是（)A.thickB.ellipseC.pointD.reduce

【C7】A．similarityB．differenceC．associationD．relationship

下面哪个是合法的标识符?A.$personsB.2UsersC.*pointD.this