题目

.— Our holiday cost a lot of money.        — Did it? Well, that doesn’t matter          you enjoyed yourselves.        A. as long as                 B. unless                      C. as soon as                 D. though 答案：C________作用在物体________上的力叫压力，压力产生的效果不仅跟________有关，还与________有关，在物理学中，用________（物理量名称）表示压力作用效果．