题目内容
点(π,0)是曲线y=sinx的一个拐点
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曲线f(x)=lnx在区间(0,+∞)上是凸的
Fill in the blanks with the proper form of the words given in brackets. (《练习册》page 78 )1. My father works at the university and his dream is to find an answer to one of the world's __________ (cure) illnesses.
课本p128 Working with words 1 (横向看)1_________ 2_________3_________ 4_________5_________ 6_________7_________ 8_________9_________ 10________11_________ 12________13__________ 14_________15__________
课本p128 Working with words 21_________2_________3_________4_________ ____________（输入时，两个答案之间空一格）5_________ _____________6_________ _____________
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