北美制定的“数字蜂窝公用陆地移动通信系统标准”可与模拟移动通信系统兼容,称为“双筷制”,其英文缩写为()。
A.NACS
B.FPLMTS
C.GSM
D.CDMA
参考答案:A
阅读理解。
1. The city of Miramichi is in the _______ part of New Brunswick.
A. eastern
B. southern
C. western
2. The map shows there are _______ cities that have both harbors and airports in New Brunswick.
A. three
B. six
C. nine
3. From the map, the distance from Boston to Bathurst is _______ that from Boston to Saint John.
A. shorter than
B. longer than
C. as long as
4. New Brunswick is in _______ according to the information above.
A. the USA
B. Brazil
C. Canada
5. Which of the following is NOT true according to the map above?
A. There is only one transportation style in New Brunswick.
B. If you travel from Moncton to Edmundston, you can go there by plane.
C. Washington
D. C. is to the south of Ottawa.
煤气设备各类带煤气作业处、可能泄漏煤气处均须设立明显()。
A.警示标志
B.指示标志
C.禁止标志
D.指路标志