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【简答题】
合成有机高分子材料的出现是材料发展史上的一次重大突破，这些材料的使用推动了人类社会的进一步发展。从我们的日常生活到现代工业、农业、科技等领域，都离不开合成材料。请你举出三种不同的合成材料并分别说出它的一点用途。 (1)_____________________ (2)_______________________ (3)______________________
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反馈参考答案：
举一反三
【判断题】Balanced diet provides not only all the essential nutrients, dietary fiber, and energy, but also the correct proportion of nutrients.
A.
正确
B.
错误
【单选题】Whether young or( )in age, more and more people are eating foods that not only provide nutrients for the body but also guard against the threat of diseases.
A.
inferior
B.
junior
C.
superior
D.
mature
【单选题】Whether young or in age, more and more people are eating foods that not only provided nutrients for the body but also guard against the threat of diseases.
A.
inferior
B.
junior
C.
superior
D.
mature
【判断题】Balanced diet provides not only all the essential nutrients, dietary fiber, and energy, but also the correct proportion of nutrients.
A.
正确
B.
错误
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