问题
选择题
Small businesses are finding it hard to survive in the present economic______.
A．atmosphere
B．world
C．climate
D．condition
答案
答案：C
搜题请搜索小程序“爱下问搜题”
Small businesses are finding it hard to survive in the present economic______.
A．atmosphere
B．world
C．climate
D．condition
答案：C
小洋利用天平和量杯测量某种液体的密度，得到的数据如表，根据数据绘出的图象如图，则量杯的质量与液体的密度是（ ）
| 液体与量杯的质量m/g | 50 | 70 | 90 | 110 |
| 液体的体积v/cm3 | 25 | 50 | 75 | 100 |
A．30g 1.0×103kg/m3
B．50g 1.0×103kg/m3
C．30g 0.8×103kg/m3
D．50g 0.8×103kg/m3
