A:②③④
B:①④⑤
C:①②③⑤
D:③⑤
A pet can help a person who feel _______.
选项
事实
微观解释
A
温度降低,汽油的密度增大
分子的体积变小
B
春天公园里散发出阵阵花香
分子在不断运动
C
10mL酒精与10mL水混合后体积小于20mL
分子之间有间隙
D
一滴水中含有约1.67×1021个水分子
水分子的体积和质量都很小
⑴Bob is a good football player. ____
⑵Last Saturday, my father and I watched a basketball game.____
⑶This is our team.____
⑷—Who won? ____
—Tom's team won.
⑸My brother is a policeman.____
A. B. C.
D. E.