问题
选择题
Here you new shoes. Please put .[ ]
A. is, them on
B. are, they on
C. are, them on
D. are, on them
答案
答案：C
搜题请搜索小程序“爱下问搜题”
Here you new shoes. Please put .[ ]
A. is, them on
B. are, they on
C. are, them on
D. are, on them
答案：C
CH3COCH2Br＋HBr）来研究反应物浓度与反应速率的关系。反应速率v(Br2)通过测定溴的颜色消失所需的时间来确定。在一定温度下，获得如下实验数据