第11题: [单项选择]有关FGR死亡率哪项是正确的 A. 以上都不正确 B. 是正常儿的2倍 C. 是正常儿的1~3倍 D. 是正常儿的4~6倍 E. 是正常儿的1倍 参考答案:D
第12题: [单项选择]Dogs have been the subject of countless experiments because they are similar to human beings in ______. A. habit B. structure C. temperament D. appearance 参考答案:B 答案解析:见第三段第二句Both his diet and his structure are comparable to those of the human being...