第10题: [单项选择]During the second stage, if the family wanted to consume new goods and services, they had to enter the marketplace ______. A. as wage earners B. both as manufacturers and consumers C. both as workers and purchasers D. as customers 参考答案:C 答案解析:[解析] 从文章中“In order to consume these new goods and services,the family had to enter the market place
第22题: [单项选择]可作为退热药的首选,尤其适合老年人和儿童服用的药品是 A. 阿司匹林 B. 布洛芬 C. 酮咯酸 D. 对乙酰氨基酚 E. 安乃近 参考答案:D 答案解析:[解析] 本题考查发热的药物治疗。 对乙酰氨基酚(扑热息痛)对中枢神经系统前列腺素合成的抑制作用比对外周前列腺素合成的抑制作用强,解热作用强,镇痛作用较弱,但作用缓和而持久,对胃肠道刺激小,
第23题: [单项选择]关于结肠息肉,下列描述中错误的是() A. 好发于直肠和乙状结肠 B. 多见于儿童 C. 息肉病有明显的家族遗传性 D. 病理上是炎性增生性病变 E. 双重造影时呈环形阴影,轮廓光整,密度均匀 参考答案:E