Questions 9 to 12 are based on the conversation you have just heard.
A. Interviewer and applicant.
B. Teacher and student.
Colleagues.
D. Salesperson and customer.
查看答案
下列组合，正确的是
A. 层厚响应曲线—SSP
B. 多平面重组—MPR
CT血管造影—CTA
D. 表面阴影显示—SSD
E. 最小密度投影—MIP
Passage OneQuestions 16 to 18 are based on the passage you have just heard.
A. Huge increase in the number of public relations companies.
B. Shrinking cultural differences.
C. New communications technologies.
D. PR efforts in other countries.
( )陆桥运输和空桥运输的区别在于：在整个运输过程中,陆桥运输使用的是不同的集装箱,而空桥运输使用的是同一集装箱,不用换装。
A. 对
B. 错
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