问题
选择题
Remember to spend some time ______ your loved ones, because they're not going to be around forever. [ ]
A. from
B. with
C. in
D. on
答案
答案：D
搜题请搜索小程序“爱下问搜题”
Remember to spend some time ______ your loved ones, because they're not going to be around forever. [ ]
A. from
B. with
C. in
D. on
答案：D
CO2＋H2，当反应达到平衡时，CO的体积分数为x，若维持容器的体积和温度不变，起始物质按下列四种配比充入该容器中，达到平衡时CO的体积分数大于x的是