【单选题】( )灭亡了曾经无比发达的埃及王朝,从此埃及不再是一个独立的国家,这种局面一直延续到近代。
【判断题】( )漫射式接近开关是利用光的各种性质,检测物体的有无和表面状态的变化等的传感器。
【单选题】Before Melissa organizes and composes her message, she should ask two questions: (1) Why am I sending this message? and (2)
A.
Why did my boss give this task to me?
B.
What do I hope to achieve with this message?
C.
How can I get this message written as quickly as possible?
D.
Do I have enough time and financial resources to complete the work?