题目

在做“验证动量守恒定律的”实验中：（1）用精度为0.1mm的游标卡尺测量直径相同的入射球与被碰球的直径，测量结果如图甲所示，该球直径为________ｃｍ．（2）实验中小球的落点情况如图乙所示，入射球Ａ与被碰球Ｂ的质量比为ＭＡ∶ＭＢ＝3∶2，则实验中碰撞结束时刻两球动量大小之比为ｐＡ∶ｐＢ＝__  ______． The suggestion _______ Tom gave me about how to study English at the meeting was that we ______ as much as possible.? A. which; would read? B. that; would read? C. what; should read?   D.不填; read