Mastering Science workbook 2A answer?

2015-12-19 1:31 pm

回答 (1)

2015-12-20 3:23 am
✔ 最佳答案
unit7
Living things and air

ASectional ExerciseSectional Exercise
7.1Gases in the air

I True or false questions (p.1)
1. F
2. F
3. T
4. T
5. F
6. T

II Fill in the blanks (p.1)
1. atmosphere
2. noble gas
3. glowing, oxygen
4. milky
5. carbon dioxide, higher

III Multiple-hoie questions (p.2)
1. D
2. B
3. C
4. D
5. D
6. B


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