题目

Modern Chinese use the solar calendar（阳历）as English people do．But at the same time，they use their own lunar calendar（阴历）．Each lunar year is given the name of one of these animals，the rat，the ox，the tiger，the hare，the dragon，the snake，the horse，the goat，the monkey，the chicken，the dog and the pig．This list lasts for twelve years and then starts again． Each Chinese month starts on the day of the new moon．And the full moon comes on the 15th day of the month．The new year always starts between January 21 and February 20．On the last day of lunar y20．按要求完成填空．（1）如图甲所示，圆柱体的直径为1.80cm．（2）如图乙所示，光屏上刚好得到清晰的像，该凸透镜的焦距为15cm．（3）如图丙所示，该实验能探究出并联电路电流的特点是干路电流等于各支路电流之和．（4）如图丁所示，在探究物体动能的大小与什么因素有关的实验中，通过比较小球推动木块的移动的距离来反映小球动能的大小．