① put litter into the dustbin
② stay up reviewing lessons all the time
③ go to school without breakfast
④ wash hands before meals
⑤ open the window and take a fresh breath as often as possible
A:①④⑤
B:②③④
C:①②⑤
为了免受应得的责备,有些人会掩盖真相、敷衍搪塞、编造借口、无中生有、言不对题或者真真假假、闪烁其词。这些欺骗伎俩并非总能奏效,但是其目的却已昭然若揭:不过是想方设法逃避谴责与惩罚罢了。这些欺骗伎俩( )
定义在﹣2,2上的偶函数f(x)在0,2上单调递减,且f( 12 )=0,则满足f( log14 x)<0的集合为____.
如图,在△ABC中,CA=CB,∠ACB=90°,AB=2,点D为AB的中点,以点D为圆心作圆心角为90°的扇形DEF,点C恰在弧EF上,则图中阴影部分的面积为____ .
选出不同类的一项 ()