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单选题
An artificial sweetener, such as aspartame or sucralose, is said to contain no calories by the body’s not converting it into energy.
A
by the body’s not converting it into energy
B
by the body’s not convening them into energy
C
because the body does not convert them into energy
D
due to the body’s not converting the energy in them
E
because the body does not convert it into energy
参考答案
参考解析
解析：
B，C，D项中都错用复数形式的代词“them”来指代单数名词“sweetener”。A项措辞不符合语言习惯。
B，C，D项中都错用复数形式的代词“them”来指代单数名词“sweetener”。A项措辞不符合语言习惯。
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