1、用天平称量物体时,误将砝码放在了左盘.被称量物放在了右盘.读数为4.3g,问物体实际质量.(一克一下用游码).
1、用天平称量物体时,误将砝码放在了左盘.被称量物放在了右盘.读数为4.3g,问物体实际质量.(一克一下用游码).
2、在“观察水沸腾现象”实验中,石棉网的位置与作用?
3、She uses to her car ( )for driving to work.
A most B mostly C almost
4 Why didn'she send all ()children.
A anther B other C the others
5