任意一汉字的机内码和其国标码之差总是________。
A．8000H
B．8080H
C．2080H
D．8020H
参考答案：B
Nice to meet you, Jim! It has been one year since I last ______ you. [ ]
A. met
B. meet
C. meeting
骨骼年龄（骨龄）
