国开20秋理工英语边学边练(4)
17. 边学边练1.[判断题] When decorating the house, you can use low-quality paints because they are cheap.
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A.对
B.错
正确答案:——B——
2.[判断题] It is good for your health to keep windows and doors open for at least 15 hours a day.
A.对
B.错
正确答案:——B——
3.[判断题] Placing green plants inside is a good way to make your house greener.
A.对
B.错
正确答案:——B——
4.[判断题] You can keep wastes inside for many days if they are untouched.
A.对
B.错
正确答案:————
5.[判断题] Flies and mosquitoes are carriers of bacteria and viruses.
A.对
B.错
正确答案:————
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