Question

下面的题目怎么做???

下面的题目怎么做???
set, widely , devote, declare, soecify, specific, specifiy, generally,
1.He_____that what he had said was true.
2.He_____his whole life to the development of science.
3.Have they____a particular day for the meeting?
4.At that time it was _____ believed that the sun travelled around the earth.
5.Computers are now ______used among science students.
还有翻译一下 ，，谢谢

Answer 1

1..He__sets___that what he had said was true.
2.He__devotes___his whole life to the development of science.
3.Have they__declared__a particular day for the meeting?
4.At that time it was ___specific__ believed that the sun travelled around the earth.
5.Computers are now ___generally___used among science students.

Answer 2

1.declared
他说他之前所说的都是真的。
2.devoted
它将毕生的心血贡献给了科学的发展。
3.set
他们为这次会议选好特定日期了么？
4.generally
那是大家普遍相信太阳是围着地球旋转的
5.widely
现在，理科学生普遍使用电脑。

Answer 3

12
÷
（　60　）＝0.2=(
1):(
5)==(
20)%
1.同圆中，所有的直径都相等，所有的半径都（相等
)
2.x
-
40%x
=
120
1.6x=120
x=75
15x
–
30
=
150
15x=180
x=12

Answer 4

12
÷
（　60　）＝0.2=(1
):(
5)==(
20)%
同圆中，所有的直径都相等，所有的半径都（相等
)
2.x
-
40%x
=
120
0.6x=120
x=200
15x
–
30
=
150
15x=180
x=12
1把25克糖溶入100克水中，糖占糖水的百分比（　②　）
①
25%
　　　
　　　②20%
25/(25+100)*100%=20%

Answer 5

24千克是30千克的（80
）%，30千克比24千克多（25
）%
。
算式：24/30=0.8=80%
，（30-24）/24=6/24=1/4=25%

Answer 6

12
÷
（　60　）＝0.2=(1
):(
5)==(
20)%
把25克糖溶入100克水中，糖占糖水的百分比（　20%　）
24千克是30千克的（80
）%，30千克比24千克多（25
）%
。