Studies show that people who like sitting in the office for hours without a break are more to suffer from back problems. A. likely B. possible C. probable
Is there a strange something high up in the world’s tallest mountains?If so,is a big bear?Is it a monkey? Or is it a kind of man? No one knows. This mystery has puzzled the world for years. In 18
In order to know a foreign language thoroughly（完全地），four things are necessary． First， we must understand the language when we hear it spoken． Secondly， we must be able to speak it
A．调洪能力强 B．库容量大 C．淹没地区小 D．工程量小