阅读理解,判断正误。I like dogs. They are very cute and funny. They are people's(人类的) good friends.My family has a dog named Dudu. Dudu is 4 years. It is fat. The dog is white. It has two eyes, two ears, one mouth and a nose. It can(会) run, eat , and swim. Dudu is very lovely, I like it very much.【1】The dogs are people's good friends. (_____)【2】The writer's(作者) dog is four years old. (_____)【3】Dudu is black and white. (_____)【4】Dudu has two eyes, two ears, two mouths and a nose. (_____)【5】Dudu is very cute. (_____)
下列物质中所含分子物质的量最多的是
[ ]
A.
4℃时2.7 mL水
B.
2.24 L一氧化碳(标准状况下)
C.
6.02×1022个氯化氢分子
D.
4.9 g磷酸