According to the conversation why wont DME be on the market soon?A.It hasn"t been adequat

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According to the conversation, why wont DME be on the market soon?

A.It hasn"t been adequately tested.

B.It"s expensive.

C.It damages car engines.

D.It"s dangerous to transport.

请帮忙给出正确答案和分析,谢谢!

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