填空题

If the storage problem is _ and ___, a network of hydrogen stations and the transportation infrastructure will have to develop around it.

【参考答案】

solved；standardized

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热门试题

填空题

Possible sources for the hydrogen are both electrolysis of water and _____________.

单项选择题

If the storage problem is _________ and ___________, a network of hydrogen stations and the transportation infrastructure will have to develop around it.