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【單選題】
細胞是由物質組成的，物質是由元素組成的。人體內的某種有機物只含有C、H、O三種元素，下列對該種物質的敘述中正確的是 （ ）
A.
與細胞膜、核糖體的組成無關
B.
不能作為能源物質為人體的生命活動提供能量
C.
不是構成核酸的成分
D.
對維持體溫的相對恒定具有重要作用
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舉報參考答案：
舉一反三
【單選題】What kind of book does the girl want to read?
A.
A book about animals.
B.
A book on dolls.
C.
A book about candy and cookies.
【單選題】How many students mentioned in paragraph were shot dead in 1997 in US schools?
A.
Nine.
B.
Ten.
C.
Twelve.
D.
Twenty-two.
【單選題】What are the speakers probably doing?
A.
Listening to a speech.
B.
Singing.
C.
Memorizing words.
相關題目：
【單選題】What kind of book does the girl want to read?
A.
A book about animals.
B.
A book on dolls.
C.
A book about candy and cookies.
【單選題】How many students mentioned in paragraph were shot dead in 1997 in US schools?
A.
Nine.
B.
Ten.
C.
Twelve.
D.
Twenty-two.
【單選題】What are the speakers probably doing?
A.
Listening to a speech.
B.
Singing.
C.
Memorizing words.
參考解析：
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