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题库 / OG2017V-SC-256
Analysts blamed May's sluggish retail sales on unexciting merchandise as well as the weather, colder and wetter than was usual in some regions, which slowed sales of barbecue grills and lawn furniture
colder and wetter than was usual in some regions, which slowed
which was colder and wetter than usual in some regions, slowing
since it was colder and wetter than usually in some regions, which slowed
being colder and wetter than usually in some regions, slowing
having been colder and wetter than was usual in some regions and slowed
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A选项：be wetter than usual, 固定搭配，所以was多余；同时选项末尾which指代不明确；
C选项：which指代不清楚；be wetter than usual, 固定搭配
D选项：be wetter than usual, 固定搭配,usually❌；
E选项：than usual,现在分词having been colder修饰analysts,语意❌
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