题目

The experiment has_________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets. A. found out           B. pointed out        C. ruled out         D. carried out   答案：C  考查词组辨析。find out“找出，查清楚，弄明白”；point out“指出”；rule out“宣布……不可能，排除……的可能性”；carry out“执行，实施”。题意：尽管那个实验派出了这个星球上存在生命的可能性，但是这不意味着其他的星球上就没有生命。  —_______delicious beef !—Well，you can eat more if you like it.A．What B．What aC．How D．How a