我国互联网络域名体系中各级域名中不可以包含的字符是( )。A．字母(A-Z，a-z
题型：单项选择题
问题：
我国互联网络域名体系中各级域名中不可以包含的字符是( )。
A．字母(A-Z，a-z，大小写等价)
B．数字(0-9)
C．连接符(-)
D．问号()
题型：单项选择题
小题1:The two girls spent one whole class sitting on the playground, a______ in conversation.
小题2:His test in presenting RealCine encouraged him to become more c______ of himself.
小题3: The boat floated down with the water, too fast to e______, which made the girl in terror.
小题4:I felt really g______ after breaking my promise, but still I hesitated to
apologize to him.
小题5:When I was young, my grandma often reminded me of table m_______.
小题6:She was really upset and ______（发誓）that she hadn’t told anyone.
小题7:Our festival is part of a large festival which celebrates _______ （当代）art.
小题8:It would be beneficial to teach people about ______ （环境上）friendly ways of living.
小题9:Some people think of greedy businessmen hiding from their ________(责任) and only worrying about money.
小题10:Join me in ______ （祝愿）all of you a success in the final examination.