A.
istream& operator>>(istream&, 自定义类型&)
B.
istream& operator<< /div>
C.
ostream& operator>>(ostream&, 自定义类型&)
D.
ostream& operator<< /div>
【单选题】Choose the one wh i ch has the same meaning with the underlined part. The French book must be Li Ying's . She's the only one who's studying French.
【简答题】如何理解掌握教育技术有助于教师创新教学方法
【单选题】只管武场不管文场的“武师”这一名词来自()。