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【单选题】
垃圾是放错了位置的资源．生活垃圾中的塑料矿泉水瓶、塑料袋等都属于（ ）A.
金属材料
B.
无机非金属材料
C.
有机合成材料
D.
复合材料
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反馈参考答案：
举一反三
【单选题】个月女婴,6.2kg,母乳喂养,未添加任何辅食,大便5~6 次/日,黄色糊状便,无臭味。大便细菌培养阴性。该患儿的治疗正确的是( )
A.
庆大霉素
B.
利巴韦林
C.
氨苄西林
D.
诺氟沙星
E.
添加辅食及助消化药
【单选题】How to practise "Less is More" in our life according to unit 6?
A.
We should control our desire of buying too many unnecessary things.
B.
Throw unnecessary and useless things from time to time to keep room clean and tidy.
C.
To focus our mind on our goals, instead of being distracted by too many choices.
D.
All of the above.
【单选题】The headmaster said, ' our hope that every one of the students in our school can go to college after they graduate.' [ ]
A.
This is
B.
There is
C.
That is
D.
It is
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