关于亚洲气候的叙述，正确的是（ ）

2.7与4.8的和乘0.6，所得的积再除8.1，结果是（   ）

四答下列与水有关的问题．

（1）生活中鉴別软水和硬水常加入 ____；

（2）做细铁丝在氧气中燃烧实验时，瓶底留有少量水的目的 ____；

（3）从微观角度来看，水蒸发成水蒸气，所占体积变大的原因是 ____.

根据对话内容，从下面方框中选择适当的单词或短语填空，使对话内容完整正确。

A: Hello, nice to see you again.
B: Me too.
A: How is your holiday?
B: Great! I had a ____  holiday. I traveled to Japan with my parents.
A: Really? What did you see there?
B: I saw a lot of ____  ,such as Mount Fuji and Sanrio Puroland. Mount Fuji is so wonderful    that all of us want to climb up to the top. And Sanrio Puroland is the Hello Kitty’s land. We also  visited the Hello Kitty’s house. How lovely it is!
A: You must have a great time.
B:____  . How about you? What were you doing  ____  ?
A: I didn’t ____  . But I had a good time staying at home .I read a lot of books.
B: Oh, that’s interesting . It’s time to have lunch. I have to go. Bye.
A: Bye.