题型:问答题 连词成句,注意大小写和标点符号。1. Here are you (.) 2. how there many in eggs are the box (?) 3. is my this friend (.) 4. at my look apples (.) 5. that who is boy (?) 查看答案
题型:问答题 将金属块挂在弹簧测力计下端,先后浸没在水和酒精中,金属块静止时弹簧测力计的示数如图中甲、乙所示。则下列关于金属块的几个物理量计算正确的是( )A.在水中受到的浮力为2NB.质量为3kgC.体积为10cm3D.密度为3.0×103kg/m3 查看答案