题目

根据表格内容,选择最佳答案。 NameAgeSchoolDate (日期)Activity Bill13No. 1 Middle SchoolOctober 16thEnglish test David15No. 3 Middle SchoolAugust 20thSports Day Gina13No. 5 Middle SchoolNovember 22ndVolleyball game Alice12No. 4 Middle SchoolDecember 19thTom's birthday Helen14No. 2 Middle SchoolDecember 20thSchool Day (1) ________ and ________ are thirteen years old. A . Helen, Gina B . David, Bill C . Bill, Gina D . Alice, David (2) ________ has an English test on October 16th. A . Helen B . Bill C . David D . Alice 用两个相同的电热器给质量同为2kg的物质甲和水加热,它们的温度随时间的变化关系如图所示,据此判断甲物质10min吸收的热量为 A.5.04×105J        B.4.2×105J C.2.52×105J        D.条件不足,不能计算  
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