2024年6月 GESP C++ 3级单选题第14题｜真题与答案解析

下面可以正确输出 They're planning a party for their friend's birthday. 的C++语句是？

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cout << 'They're planning a party for their friend'\s birthday." << endl;

cout << "They're planning a party for their friend's birthday.'<< endl;

cout << 'They're planning a party for their friend's birthday.'<< endl;

cout << "They're planning a party for their friend's birthday." << endl;