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【单选题】
婴儿出生6—10,人脸可以引发微笑。这种微笑被称为( )。A.
生理性微笑
B.
自然微笑
C.
社会性微笑
D.
本能微笑
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反馈参考答案：
举一反三
【简答题】简述土壤中主要的原生矿物种类及其各自对土壤的意义。
【单选题】What point does the author try to make at the end of the passage?
A.
Bill Shean did all he could to prove he was a real champion.
B.
Bill Shean made other golfers feel that they all must improve.
C.
Bill Shean inspired people to succeed in the way he had done.
D.
Bill Shean had unique qualities that others could only admire him for.
【简答题】血氨主要代谢途径是
【简答题】当蒸馏沸点高于140°C的物质时,应该使用( )。
【单选题】The unique point at which the supply and demand curves intersect is called
A.
market harmony.
B.
coincidence.
C.
equivalence.
D.
equilibrium.
【单选题】The unique point at which the supply and demand curves intersect is called
A.
market unity.
B.
an agreement.
C.
cohesion.
D.
equilibrium.
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