搜题请搜索小程序“爱下问搜题”
问题 填空题
计算：
(1+
7
1
)(1+
7
2
)(1+
7
3
)(1+
7
4
)(1+
7
5
)(1+
7
6
)
(1+
9
1
)(1+
9
2
)(1+
9
3
)(1+
9
4
)(1+
9
5
)
•
(1+
7
7
)(1+
7
8
)(1+
7
9
)
(1+
9
6
)(1+
9
7
)
=______．
答案

原式=

8
1
•
9
2
•
10
3
•
11
4
•
12
5
•
13
6
•
14
7
•
15
8
•
16
9
10
1
•
11
2
•
12
3
•
13
4
•
14
5
•
15
6
•
16
7

=

8•9
8•9

=1．

故答案为：1．

句型转换

根据要求，在每个空格中填入一个单词，缩写词视为一个单词。

1. I'd like to go somewhere relaxing. (对划线部分提问) 

                            you like to go?

2. Our English teacher is talking with the girl. Do you know her? (合为一句)

    Do you know the girl with             our English teacher is talking?

3. The band played many songs, some of my favorites included. (同义句)

    The band played many songs,             some of my favorites.

4. People say that the umbrella was invented over 4000 years ago. (同义句)

                            that the umbrella was invented over 4000 years ago.

5. Did your father buy you a digital camera? (改为被动句)

    Was a digital camera                         you by your father?

6. 皇帝注意到水中的树叶发出了一种令人愉快的气味.

    The emperor noticed that the leaves in the water             a             smell.

查看答案
单项选择题

可以提高气体在液体中的物理溶解量的是

A．增大气体压强

B．扩大液体表面积

C．降低温度

D．减少气体压强

E．提高温度
查看答案