用系统命名法命名酮时，选择（）的碳链为主链。
A、碳原子数最多
B、碳原子数最少
C、含有羰基最短
D、含有羰基最长
参考答案：D
He ____ the apple but couldn't ____ it. [ ]
A. reached; reached
B. reached for; reached for
C. reached for; reached
D. reached; reached for
客户要求赔偿间接损失时如何处理？
