第13题: [单项选择]Which of the following is NOT mentioned as a reason for the Wright brother's success A. They worked very well together. B. They both had practical experience building aircraft. C. They made extensive tests before they completed the design. D. They were well funded. 参考答案:D 答案解析:[解析] 文中未提是否有雄厚资金支持的问题。
第34题: [单项选择]适用于连续性资料,说明事物随时间的动态变化过程可绘制() A. 直方图 B. 圆图 C. 散点图 D. 直条图 E. 线图 参考答案:E 答案解析:表示事物内部各部分的构成比资料,可用面积大小表达各部分所占的比重大小,可选用圆图。用线段升降表达事物的动态变化趋势,可选用线图。双变量连续性资料,表达两个变量的相互关系,可选用散点图。