请据图回答：
在同体积的热水和冷水中滴入相同的墨水，热水很快变色，说明____ 分子运动越剧烈．
(____) These are all books about science.
(____) That's a good idea.
(____) Let's put them on this shelf.
(____) We can put them on Shelf B.
(____) Let's make a home library.
