海水的密度超量表达式()。
参考答案:Þ1000千克/米3
Don’t come this morning. I would rather you______ the day after tomorrow.
A.come
B.came
C.are to come
D.will come
在餐厅使用空调热风时,应将温度控制在()。
A.15℃
B.10℃
C.25℃
D.18~20℃