奔流在横断山区的金沙江,水能资源丰富,全流域计划开发25级电站。金沙江位于( )
A:黄河上游
B:长江上游
C:珠江上游
D:黑龙江上游
____÷____=____(人)……____(人)
-- I had a quarrel with my friend Jim yesterday,and now I _______ it.
-- Why not go and say sorry to him at once?It's never too late to mend.
下列句子标点运用正确的一项是( )