A:-3
B:9
C:-15
D:-7
Mum asked children to eat it ____ (two) a week.
The Chinese people are willing to get on with other countries ____ (peace).
把含糖65%的糖水210克和含糖45%的糖水290克混合后,得到的糖水含糖百分之几?正确的解答是( )