【单选题】根据病虫发生消长规律,对影响病虫发生的多种因素进行调查,取样数据结合历史资料和( ),进行分析估计的过程称为预测。
【单选题】You be hungry after the long walk. Help yourself to some cakes.
【多选题】关于发动机冷却系统,下列说法正确的是( )。
B.
现代轿车采用防冻液,以提高冷却液的防冻和防沸腾的能力
【单选题】听力原文: At the University of Kansas art museum, investigators tested the effects of different colored walls on two groups of visitors. For the first group the room was painted white for the second, dark...
A.
At the University of Kansas.
B.
At the University of Kansas art museum.
【单选题】关于新嘉年华的冷却系统下列说法正确的是?()
A.
冷却风扇是由风扇模块控制的,所以风扇的转速可根据水温的高低变化而连续变化
D.
由水温警示灯取代了水温表,当发动机水温高于120℃时,水温警示灯会点亮
【单选题】One of the great changes brought about by the knowledge society is that ______.
A.
the difference between the employee and the employer has become insignificant
B.
people have to change their jobs from time to time
C.
most people have to take part-time jobs
D.
people's traditional concepts about work no longer hold true
【多选题】关于发动机冷却系统,下列说法正确的是( )。
B.
节温器用来调节冷却强度,保证发动机在最适宜的温度下工作