专升本考试

【单选题】Hydrogen ______.
A．is a widely-used fuel
B．is not yet in general use as a fuel
C．is not a particularly easy fuel to store
D．is a more economical fuel than wind energy
网考网参考答案：B
网考网解析：
细节题。文章最后一句中讲到“unless…we move to the widespread use of a fuel like hydrogen”，这是假设氢燃料的广泛使用，可见氢燃料尚未普遍使用。 查看试题解析出处>>