What could be the possible reason for the narrator's mother to use the word "au revoir" in Reading D?(5.0)
A. Since "au revoir" means "goodbye", it doesn't make special sense.
B. His mother preferred French to English.
C. His mother tried to lessen the pain of saying goodbye to a dear family member.
D. "Au revoir" foreshadows a reunion of the narrator and his grandmother later.
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What can you infer about the narrator from the passage?(5.0)
A. He was also a ghost because he could see his deceased grandmother in the photos he had taken.
B. He would finally begin to doubt his mother's identity.
C. He was not very close with his grandmother.
D. He had been unconsciously following his ghost grandma's orders.
Why was the narrator found lying on the floor, white and shaking?(5.0)
A. He fainted from the fear that the police would come to talk to him.
B. His dead grandmother smiling in the photos he had taken shocked him.
C. He was obsessed by a ghost.
D. His camera was a ghost machine.
HXD3D型电力机车为防止损坏辅助压缩机，TCMS 自动控制辅助压缩机运行时间不超过（）分钟,再次投入工作需间隔20 分钟。
A. 10
B. 15
C. 20
D. 30
HXD3D型电力机车在微机显示屏的列车信息界面，按压“控制”图标进入控制界面，点击“受电弓预选择”图标，进行受电弓升弓选择。
A. 对
B. 错
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