第30题: [单项选择]The underlined phrase "emanate from" in (Sent. 2, Para. 1) most probably means " ______ ". A. thrive on B. account for C. originate from D. descend from 参考答案:C 答案解析:词汇猜测题。emanate from的含义从该句话中...offensive breath emanates from bacteria in the mouth理解。原句的含义为,“在大多数情况下,
第31题: [单项选择]不属于模拟用户电路功能的是() A. 馈电 B. 过压保护 C. 振铃控制 D. 监视 E. 码型转换 参考答案:E