【单选题】And once you start replacing real human contact with cyber-interaction, coming back out of the cave can be quite difficult. What does " cave " here refer to?
A.
the isolated life of the virtual world.
B.
a large hole in the side of a hill or under the ground
【简答题】Correct the mistakes in the following sentences. 1. I would live in Nanjing when I was at primary school. 2. The explorer discovered the ancient cave in accident. 3. This course requires that every st...