第5题: [简答题]Some college graduates choose to work as village officials.
1. Do you think it is a good idea
2. What can they offer the countryside
3. What can they gain from their village positions 参考答案: 答案解析:
第7题: [单项选择]Passage OneWhat happens after cable television has moved into cities A. All classrooms use cable television. B. City people can see extra programs. C. The charge of cable is much lowered. D. TV signals can be received more easily. 参考答案:B 答案解析:[解析] 短文提到,有线电视进入城市后,给城市观众带来了普通天线无法提供的额外节目,故B正确。 [点睛] 短文说的是,有线电视在许多教室里得到应用,但没有说是在全部课室,故A错误;C、
第17题: [单项选择]左心房黏液瘤的诊断主要依靠()。 A. X线检查 B. 栓塞史 C. 超声心动图 D. 心尖区舒张期杂音,随体位而改变 E. CT和磁共振 参考答案:C 答案解析:超声心动图能显示黏液瘤的回声图,对心房黏液瘤的诊断有极大的价值,而且无创、简便易行,它对黏液瘤的诊断具有决定性的作用。
第18题: [单项选择]对乳腺癌诊断最好的指标是() A. CA153(糖类抗原)和CA549 B. CEA C. CA50 D. AFP E. hCG 参考答案:A