下面词语中没有错别字的一组是（    ）

    We live in the computer age. People use computers to do much of their work. But few people know how to look after them. Remember the following when you use your computer:
    ① Keep your computer in a cool ,dry room. Too much or too little heat is bad for computers. Damp (潮湿) is also bad for them.
    ② Do not let people smoke near your computer. Smoke of all kinds is very bad for many parts of a computer.
    ③ Do not eat or drink when you are near your computer. Pieces of food and a little water in the keyboard are also bad for a computer.

下列命题中的假命题是（   ）

下面文段中画横线的词语使用不正确的一项是（    ）

《红楼梦》从问世起就一直谜团不断。它究竟表达了怎样的主题？它为什么会有众多的版本？高鹗所续写的后四十回是狗尾续貂还是锦上添花？这些话题引发了世人旷日持久的争论，学术界也众说纷纭，莫衷一是。而二百多年后的今天，我们惊异地发现，尽管我们破解了许多红学难题，但困惑与疑问依然纷至沓来，我们对它依然讳莫如深。