GSM
参考答案:
Global System for Mobile communications全球移动通信系统
The boy bought a new dictionary ____ he could turn for help. [ ]
A. from which
B. into which
C. which
D. to which
备在整体装运时,必须符合《规程》的规定,不得()。
A、超长、超高、超宽、超重
B、超高
C、超长、超高
D、超宽、超重