ATSU的主要功能是（）

A．自动

B．通过 RMP 人工调协

C．通过 MCDU 人工调协

D．所有选项

Here are two letters from our readers expressing their concern about school assessment (评价)：

Students should be allowed to study without worrying about grades (学习成绩). Fortunately, most educators realize that students have different interests and abilities. However, grade-based assessment is still very common. Grades often hold back creativity. Competing for better grades causes many students to turn down opportunities to go in for music, drama and sports. Grades are also an unfair measure of a student' s ability. I do not demand, as some extremists do, that grades should no longer be recorded. However, I do believe that less importance should be placed on. grades. I hope that someday grades will become optional(可选择的) at Village High School.

Magdalena Smith, President Drama Club (2) Let' s face the facts about grades. Grades perform. three basic functions(功能). First, grades get students to work at their highest level of competence (能力). Second, they act as an encouragement for hard-working students and as a warming to those who are not. Finally, grades are an effective standard by which to measure students' achievement. Good grades help students to get jobs and to get into university.

I've spoken with a number of students who have jobs, and most of them say that they were hired mainly because of their grades. My grades helped me get a part-time job and will help me into university next year. I think grades are extremely important at Village High School.

Simon Harper, Member, Science Club

Simon Harper writes from the viewpoint of someone who______

A．insists grades should become optional in the near future

B．believe in the advantages of assessment based on grades

C．is concerned about improving students' creativity

D．supports using students' interests to measure their abilities

A．飞机接口/主机平台

B．数据链应用

C．导航数据库

A．空地数据链的通讯管理

B．机载数据路径的管理应用

C．ATIMS系统的故障监控

D．主要用于机组的语音通讯管理

A．系统管理

B．人机接口设备管理

C．空地数据链服务管理

D．以上都对

A. 检查VHF3和飞机、地面之间的联系

B. B.仅检查VHF3系统和和地面的联系

C. C.检查ATSU的工作是否正常

D. D.仅检查VHF3和飞机系统之间的联系

A．DATALINK ATSU FAULT出现在EWD上

B．MASTER CAUTION 灯点亮

C．有单谐音

D．MASTER WARNING 灯点亮

A．ATC应用软件

B．AOC应用软件

C．主平台软件

D．A+B