【单选题】如下图所示,在100.00~100.03输出口分别接四盏灯L1~L4,按下0.01三秒后,各灯状态可能为( )。
【单选题】在 Windows 中,回收站的作用是存放__________。
【判断题】人的本质是自私的,因而只享受权利和自由。()
【判断题】人人都会为自己,为自己就是自私的,所以人的本质是自私的。
【单选题】Listen to the passage. Choose the sentence that best summarizes the main idea of the passage.
A.
Parents should find a good music teacher.
B.
Children should know their musical goal of each daily practice time.
C.
Parents should allow enough relaxing break.
D.
Children should practice as much as possible every day.
【多选题】有人认为,“趋福避祸,趋利避害”是一切动物的本能,人也是动物,由此得出“人的本质是自私的”。这种论证之所以不正确,是因为( )。