It ______ a lot ______ we can develop something to substitute for petrol.

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问题 It ______ a lot ______ we can develop something to substitute for petrol.

选项 A、occurs; whether
B、matters; whether or not
C、happens; even if
D、minds; if or not

答案B

解析 句意为:我们能否开发出汽油替代品这关系到很多事。if与or not不可连用, even if代入意思不对,故C、D错;occur:发生;matter:有关,后者更符合题意。
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