第1题: [单项选择]关于生长发育评价方法错误的是（） A. 离差法可分为等级评价和曲线图法 B. 相关回归法既能评价发育水平，又能反映发育的匀称程度 C. 身高标准体重可反映儿童现实营养状况 D. 发育年龄又称生物年龄可评价儿童的发育状况 E. 百分位数法，其原理和制作过程与离差法完全相同 参考答案:E 答案解析:此题考查生长发育评价的基本概念。百分位数法和离差法均是评价生长发育的常用方法，但两者的理论依据并不相同。前者是以百分位数的序位划分发育等级，适用于正态或偏态分布的发育指标；后者则采用标准差与均值距离的
第14题: [单项选择]Passage Three Questions 32 to 35 are based on the passage you have just heard.A. Traded them with neighboring families. B. Sold them to people in cities and town. C. Kept themselves fed and clothed. D. Nourished their crops and livestock. 参考答案:C 答案解析:[解析] what did the 19th century farm families do with most of their farm products
