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题库 / Prep2007E1-SC-72
Broccoli thrives in moderate to cool climates and propagated by seeds, either sown directly in the field or in plant beds designed for producing transplants.
propagated by seeds, either sown directly in the field or in plant beds designed for producing
propagated by seeds, sown either directly in the field or sown in plant beds designed so as to produce
is propagated by seeds either sown directly in the field or in plant beds designed so that they produce
is propagated by seeds sown either directly in the field or in plant beds designed to produce
is propagated by seeds, sown either directly in the field or sown in plant beds designed for producing
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and前后，either……or……之间平行
C、they指代不清
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