【判断题】switch语句中必须有default选项码?
【简答题】A.The professor postponed the exam and will inform. everyone later. B.The professor phoned him about the postponing of the exam. C.The professor canceled the exam. D.The professor put off the exam.
【单选题】Who is Robert Gibert?
A.
A geography professor at Harvard University.
B.
A geography professor at Queen's University.
C.
A geography professor at London University.
D.
A geography professor at Massachusetts University.
【判断题】switch语句中必须有default选项
【简答题】switch语句中必须有default选项吗?
【判断题】继电器线圈工作在交流电路中,相当于一个感抗。
【单选题】switch语句中必须有default选项吗?
【简答题】switch 语句中必须有 default 选项码?
【判断题】感应同步器的节距是2mm,则其分辨率就是2mm。
【简答题】A.past B.inwards C.ahead D.upside-down