题目

鸡蛋切片器是一款厨房小神器，它通过细细的金属丝对鸡蛋进行切割．如果切片器上的细钢丝和鸡蛋的接触面积约为2×10-6 m2，鸡蛋受到的压强为5×107 Pa.则细钢丝对鸡蛋施加的力为________ N 答案：【答案】100N【解析】细钢丝和鸡蛋的接触面积S=2×10-6m2，鸡蛋受到的压强为：5×107Pa，根据得，细钢丝对鸡蛋施加的力为：。根据句意及首字母或汉语提示完成单词。（1）He (时常)takes a walk in the morning.（2）I don't want to make the (航海) by myself.（3）The President was leaving for a four-day (正式的) visit to Mexico.（4）(事实上), on second thoughts, I don't think I will go out with him.（5）It is said that the (身份) of the woman is still unclear.（6）The teacher advised him to build his v by doing more reading.（7）Go s ahead, and you will find the entrance.