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题库 / OG2017V-SC-217
Consumers may not think of household cleaning products to be hazardous substances, but many of them can be harmful to health, especially if they are used improperly.
Consumers may not think of household cleaning products to be
Consumers may not think of household cleaning products being
A consumer may not think of their household cleaning products being
A consumer may not think of household cleaning products as
Household cleaning products may not be thought of by consumers, as
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a,b主语是consumers，未划线部分的many of them，这个them指代products，consumers也是复数，所以如果主语是consumers会造成这里的them指代不清
c, being,很显然一个products是具体名词，substance是抽象名词，这个being不对等
e, as hazardous sunstance离修饰对象太远，中间还有consumers，造成修饰不清
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