题目

—I went to the US last year and I had a good time there.—Wow, ________.A.that’s all right B.see you later C.no problem D.lucky you 答案：【答案】D【解析】句意：——去年我去了美国，在那里玩得非常高兴。——哇，你真幸运。本题考查情景交际。that's all right.没关系，see you later再见，no problem没问题，lucky you你真幸运。根据I went to the US last year and I had a good time there.可知，得知对方玩得高兴，因此认为他很幸运，故选D。（2013?闵行区一模）体积为5×10-4米3的木块，有25的体积露出水面，求：木块受到的浮力大小．