【C9】A．doubledB．reducedC．redoubledD．increased

A．Increase the number of strokes.B．Increase heart attacks.C．Increase asthma attacks.D．

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【C16】A．increasinglyB．increasingC．increaseD．increased

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The word "concentrated" in the passage is closest in meaning toA．dividedB．reducedC．interes

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【C4】A．causedB．reducedC．adaptedD．compelled

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【C18】A．weakenedB．reducedC．diminishedD．decreased

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For their own safety, household pets should be______to their own yard.A．confinedB．reducedC

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番泻苷A中两个蒽酮母核的连接位置是（)A.C1—C1B.C2—C2C.C9—C9D.C10—C10E.C9—C10

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