【简答题】A.Lack of clean water. B.Lack of electricity. C.Shortage of books. D.Shortage of experts. 17. A) A system which trains doctors. B) A group of experts who can provide professional advice. C) A computer...
【简答题】Read the sentences in the box. Pay attention to the parts in bold. Target sentence patterns 1 But an expert programmer can sometimes figure out how to make a computer malfunction in a creative way, so...
【简答题】Replacement alternatives refer to methods which avoid or replace the use of animals in an area where animals would otherwise have been used. This includes both absolute replacements (i.e. replacing an...