芳烃的烷基化
参考答案：又称烃化。是芳烃分子中苯环上的一个或几个氢被烷基所取代而生成烷基芳烃的反应。
.— Sorry, I _______ to buy the book you need for you.
— Never mind. _______ it myself after school.
A．forget; I’d rather buy
B．forgot; I’ll buy
C．forgot; I’m going to buy
D．forget; I’d better buy
变压器正常运行时绕组的哪部分最热？
