One of the arguments about the present education system is that students feel ______their lessons. A. pressure doing B. pressured into doing
在如图所示的电路中,电池的电动势E=5V,内电阻r=10Ω,固定电阻R=90Ω,R0是可变电阻,在R0由零增加到400Ω的过程中,求:(1)可变电阻R0上消耗热功率
阅读下面的文字,完成后面的题。 中国古代社会给人的印象,往往是秩序井然、礼教森严的,乃至使人们认为,缺乏自由似乎就是中国社会的传统,而
Don't run or shout at the party.If you do,you leave. A.will have to B.have to C.must
The most important _____ of his speech was that we should all work whole-heartedly for the people. A. element B. spot C. sense D. point
下列河流中,自南向北注入北冰洋的是( ) A.雅鲁藏布江 B.长江 C.澜沧江 D.额尔齐斯河
下图中①、②是等压面,回答: 图中a、b、c、d四处气压值最低的是 A、a B、b C、c D、d 四点中气温最高的是 A、a B、b C、c