一直线切曲线y=0.1x3于x=2,且交此曲线于另一点,求此点坐标()。 A: （-4,-6.4） B: （-2,-6.4） C: （-2,3.2） D: （-4,6.4）

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2022-05-29 问题

一直线切曲线y=0.1x3于x=2,且交此曲线于另一点,求此点坐标()。 A: （-4,-6.4） B: （-2,-6.4） C: （-2,3.2） D: （-4,6.4）

2022-07-24 问题

It is expected that the world's population will reach by the end of the century. A) 2 billion people C) 80 percent of all people B) 4.4 billion people D) 6.4 billion people A: It is expected that the world's population will reach by the end of the century. B: 2 billion people C: 4.4 billion people D: 80 percent of all people E: 6.4 billion people

It is expected that the world's population will reach ______ by the end of the century. A) 2 billion people C) 80 percent of all people B) 4.4 billion people D) 6.4 billion people A: It is expected that the world's population will reach ______ by the end of the century. B: 2 billion people C: 4.4 billion people D: 80 percent of all people E: 6.4 billion people

2022-06-05 问题