【单选题】As the chairman of the students' union, Thomas was said ______ other students in need.
【单选题】C 1 和 C 2 两空气电容器串联起来接上电源充电。然后将电源断开,再把一电介质板插入 C 1 中,如图所示,则 ( )
A.
A) C 1 上的电势差减小, C 2 上的电势差增大;
B.
(B) C 1 上的电势差减小, C 2 上的电势差不变;
C.
(C) C 1 上的电势差增大, C 2 上的电势差减小;
D.
(D) C 1 上的电势差增大, C 2 上的电势差不变。
【简答题】A.Because students need individual attention. B.Because students need to be stimulated. C.Because students need exactly the same instruction. D.Because students don't know how to learn.
【判断题】The students need time do their homework.()
【单选题】国际上通常采用负债率这个指标来衡量一国在某一时点的外债负担,负债率是指( )
【单选题】单一土层,地下水的上升,会使得土的自重应力()
【简答题】At school the students need to increase their knowledge in an organized way and __________________(获得足够的科学词汇来进行有效的学术交际)
【单选题】-Do you have enough students to clean the laboratory? -No, I think we need ___________ students. [ ]
【单选题】国际上通常采用负债率这个指标来衡量一国在某一时点的外债负担,负债率是指( )