在计算机中，汉字与( )一一对应。
A．外码 B．内码 C．拼音码 D．自然码
参考答案：B
Our bodies are strengthened by exercising._____, our minds are developed by learning. [ ]
A. Likely
B. Similarly
C. Probably
D. Therefore
超短波的波长范围是
A．300～3000m
B．100～1000m
C．100～300m
D．10～100m
E．1～10m
