第31题: [单项选择]双胍类降血糖药物的降糖作用机制是() A. 抑制肝糖原的分解 B. 增加基础胰岛素的分泌量 C. 改变餐时胰岛素的分泌模式 D. 延缓肠道碳水化合物的吸收 E. 激活过氧化物酶增殖体活化因子受体 参考答案:A 答案解析:双胍类药物主要通过减少肝脏葡萄糖的输出而降低血糖。
第32题: [单项选择]Why aren't people enjoying better lives when they have jobs A. Because many families are divorced. B. Because government aid is now rare. C. Because their wages are low. D. Because the cost of living is rising. 参考答案:C 答案解析:依据是第二段第二句的内容。