求证：∠CAB=∠AED．

图为核电站发电流程图．在核电站的发电过程中，从核能到电能，图中所示的能量转化顺序正确的是（   ）

结合语境，在下面语段中横线处填写句子最恰当的是（   ）
      起风了，风从沙漠那边来。那伟岸的白杨，挺起笔直的躯干，   ①  ；那苍劲的沙枣，舞起粗壮的臂膀，搏击着肆虐的狂风；那繁茂的榆柳，提起美丽的裙裾，笑迎着扑面的黄沙。这些沙海边的绿色啊，使人振奋，予人勇气，   ②  。它们是对坚韧不屈的沙漠生命最好的诠释。

用所给词的适当形式填空 
The ruler____  (use) since I began my school life.
Tony didn't find____  (learn) English easy.
____ (compare) with Paris, London is larger.
My mother encouraged me____ (enter) the competition of this year.
His memory of the____  (please) trip will last long.