曹娥江古称舜江，传说舜帝来过此江，东汉时因孝女曹娥投江寻父，改称今名。
参考答案：对
(2014·山西四校模拟)—We enjoyed the flowers in the park，and had________great fun yesterday.
—Great.But it’s________great pity that I didn’t join you.
A．/；/
B．a；/
C．/；a
D．a；a
用8位无符号二进制数能表示的最大十进制数为( )。
A．255
B．128
C．127
D．256
