Donotletthis__(say)ofyou.Itshowsanunattractiveindifferencetoyouremployerandtoyourjob.

两列机械波I、II在传播过程中遇到一障碍物，I的波长与障碍物尺寸相当，II的波长远小于障碍物尺寸，则机械波()

I'dliketoremindyouthatthereisno_____onthepartofsuspectstoanswerquestions.

质点作曲线运动，r表示位置矢量，v表示速度，a表示加速度，下列表达式中正确的()

Althoughtheyagreethatlifeisimportantandshouldberespected,theyfeelthatthequalityoflifeshouldnot__(ignore).