题目内容
______
A. Growing population.
B. Packaging materials.
Changed eating habits.
D. Lower production cost.
查看答案
正确答案
搜索结果不匹配？点我反馈
更多问题
______
A. By saving energy.
By using less aluminum.
C. By reducing poisonous wastes.
D. By making the most of materials.
______
A. We are running out of natural resources soon.
B. Only combined efforts can make a difference.
C. The waste problem will eventually hurt all of us
D. All of us can actually benefit from recycling.
______
A. Join a tourist group.
B. Choose a major airline.
C. Avoid trips in public holidays.
D. Book tickets as early as possible.
______
A. She can get a discount for economy night.
B. She can get a discount for business night.
C. One of her children can take a free night.
D. Her children can get discounts for economy night.
微信支付 
支付宝支付