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- 1已知函数fx是定义在R上的奇函数 当x>0是时 fx=x的平方+三次根号下x 求fx
- 2and ______ with more or fewer than seven days.A、 years B、 months C、 seasons D、 weeks
- 3用庞然大物怎么造句
- 4取一定量的Na2CO3和Na2SO4混合物溶液与过量盐酸反应，生成2.016L CO2（标准状况），然后加入足量的Ba（OH）2溶液，得到沉淀的质量为2.33g．试计算混合物中Na2CO3和Na2SO4的物质的量分别为多少．
- 5BOb has been collecting kites__?
- 6Is your father at home now?No.He is in Beijing.He may arrive____home next Monday.A、to.B、/.
- 7Just the other way,it was Tom who broke the promise.这句话中为什么要有个who?
- 8Do you know when he ___?In ten minutes A gets to B reach C will arrive D will reach
- 9人是怎么走向成功的?
- 10议论文的三要素是什么