题干
—Who's he?
—________
A：She is Bai Ling.
B：He's Zhang Peng.
C：It's a book.
答案(点此获取答案解析）
B
—Who's he?
—________
A：She is Bai Ling.
B：He's Zhang Peng.
C：It's a book.
)为一种高分子树脂，其合成路线如下： 已知：①A为苯甲醛的同系物，分子中无甲基，其相对分子质量为134；