A-A+
What does the woman mention as a disadvantage
问题详情
What does the woman mention as a disadvantage of the process she describes?
A.It hasn"t been fully tested.
B.It"s quite expensive.
C.It uses up scarce minerals.
D.The gas it produces is harmful to the environment.请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:B