第14题: [单项选择]What does the man mean A. The pool will be open all week. B. The weather will cool down soon. C. The woman should go swimming. D. He prefers to stay inside in hot weather. 参考答案:B 答案解析:[听力原文] W: These summer days are getting to be more than I can take. It was even too hot to go to
第34题: [单项选择]有关胎儿的生理特点,下列哪项是错误的() A. 脐静脉1条,脐动脉2条 B. 甲状腺是胎儿发育的第1个内分泌腺 C. 妊娠10周以前,胎儿红细胞主要来自卵黄囊,足月妊娠时主要来自肝脏 D. 胎儿体内无纯动脉血而是动、静脉混合血,各部位血氧含量只有程度上的差别 E. 胎儿的血红蛋白包括3种:原始血红蛋白、胎儿血红蛋白及成人血红蛋白。胎儿血红蛋白的氧亲和力较高 参考答案:E