[单项选择]类K是类Y及类Z的虚基类,类D是类Y及类Z的多继承派生类,则在构造类D的对象时,类X的构造函数将被调用 ______。 A. 1次 B. 2次 C. 3次 D. 0次
参考答案:A
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第1题:[单选题]It's impolite to cut in when others are having a conversation. A.leave B.talk loudly C.interrupt D.stand up 参考答案:C 本句话的意思是:“在别人讲话时插嘴是很没礼貌的。”interrupt:打断、插话,例如:The sports meet was interrupted by the heavy rain.运动会由于暴雨中断了。leave:离开,例如:He left the office immediately after the work.一下班他就离开了办公室。talk loudly:大声谈论,例如:They are talking loudly about their holiday plan.他们在大声讨论他们的度假计划。 stand up:站起来、起立,例如:All the students stood up to welcome their teacher.全体学生起立欢迎他们的老师。