You may ________the story book for two weeks.
A:keep
B:borrow
C:lend
D:buy
在不同的载体(钛片、铝片、陶瓷)表面制备TiO2薄膜,探究不同载体下TiO2薄膜光催化使甲基橙脱色的效果,每光照20min取一次样,实验结果如图所示.下列说法正确的是( )
— Jim's mother dislikes cartoons in the Past, but now she likes to watch them with little Jim.
— Oh, just as the saying goes, .
把肯定句改成栓双重否定句。
①每个小孩子都喜欢小动物。
②我对同学们的勇敢精神,从心底里感到无限的敬佩。