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  3. Palladium prices have soared, with Russia restricting exports and because automa

Palladium prices have soared, with Russia restricting exports and because automa

游客2025-02-25  8
问题 Palladium prices have soared, with Russia restricting exports and because automakers have started using it to make the huge engines in sport utility vehicles and other light trucks.
选项 A、Palladium prices have soared, with Russia restricting exports and because automakers have started using
B、Palladium prices have soared, with Russia restricting exports, in addition to automakers that have started to use
C、Prices for palladium have soared as Russia has restricted exports and automakers, have started using
D、Prices for palladium have soared as Russia has been restricting exports, in addition to automakers starting to use
E、Prices for palladium have soared because Russia is restricting exports, as well as automakers that have started using
答案 C
解析 Parallelism; Rhetorical construction
The sentence indicates that a rapid increase in palladium prices is related to a restriction in Russian exports and to the fact that automakers have started using palladium to make engines. It makes sense to see the increase in palladium prices as being a result of the other two factors, and the sentence should clearly suggest this link. Furthermore, the grammatical construction of the sentence should display parallelism. For instance, if the phrase Russia restricting exports is used, then the parallel phrase automakers having started should be used so as to create a parallel construction. On the other hand, if the clause Russia has restricted exports is used, then the clause automakers have started should be paired with it to create a parallel structure.
A The use of the word with before Russia restricting exports does not clearly indicate the causal link between this restriction and the price increases. Furthermore, with Russia restricting exports is not appropriately parallel with because automakers have started using.
B The use of the word with before Russia restricting exports does not clearly indicate the causal link between this restriction and the price increases. Also, with Russia restricting exports is not appropriately grammatically parallel with automakers that have started to use.
C Correct. The use of the word as suggests a possible causal link between the price increases and the combination of Russia’s restriction of exports and automakers’ use of palladium in the manufacture of engines. The sentence also displays an appropriate grammatical parallelism among Prices for palladium have soared, Russia has restricted exports, and automakers have started using.
D There is not an appropriate grammatical parallelism between Russia has been restricting exports and automakers starting to use.
E There is not an appropriate grammatical parallelism between Russia is restricting exports and automakers that have started using.
The correct answer is C.
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