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【單選題】
下列關(guān)于無機(jī)鹽在生物體內(nèi)所起作用的敘述中，錯誤的是（ ）
A.
合成ATP、DNA、RNA、脂肪等物質(zhì)時，都需要磷酸或磷酸鹽作原料
B.
血紅蛋白含有鐵、葉綠素含有鎂說明某些金屬元素對于維持細(xì)胞和生物體的生命活動有重要作用
C.
觀察人口腔上皮細(xì)胞要用質(zhì)量分?jǐn)?shù)為0.9%氯化鈉溶液，說明無機(jī)鹽在維持細(xì)胞的形態(tài)中有重要作用
D.
人缺碘會患大脖子病，是因?yàn)榈馐呛铣杉谞罴に氐闹匾?/div>
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舉報參考答案：
舉一反三
【單選題】What did George Washington ask Betsy Ross to do?
A.
To sew a flag representing the new nation.
B.
To design a flag representing the new nation.
C.
To change the design of the formal flag.
D.
To give some suggestions about the design of a flag.
【單選題】After the computer was invented, lots of workers were ______.
A.
compared
B.
replaced
C.
returned
D.
prepared
【單選題】The match is open to both ______ players and professional players.
A.
B.
excellent
C.
ordinary
D.
common
【單選題】2008 is a ______ year for us because then the 29th Olympic s will be held in China.
A.
financial
B.
historical
C.
cultural
D.
historic
【單選題】We can learn from the passage that ______.
A.
the Revolutionary War started in 1773
B.
Betsy Ross thought six-pointed stars would look better than five-pointed stars
C.
girls were proud to wear a cap designed and made by Betsy Ross
D.
there were 13 stars in the middle of the flag
相關(guān)題目：
【單選題】What did George Washington ask Betsy Ross to do?
A.
To sew a flag representing the new nation.
B.
To design a flag representing the new nation.
C.
To change the design of the formal flag.
D.
To give some suggestions about the design of a flag.
【單選題】After the computer was invented, lots of workers were ______.
A.
compared
B.
replaced
C.
returned
D.
prepared
【單選題】The match is open to both ______ players and professional players.
A.
B.
excellent
C.
ordinary
D.
common
【單選題】2008 is a ______ year for us because then the 29th Olympic s will be held in China.
A.
financial
B.
historical
C.
cultural
D.
historic
【單選題】We can learn from the passage that ______.
A.
the Revolutionary War started in 1773
B.
Betsy Ross thought six-pointed stars would look better than five-pointed stars
C.
girls were proud to wear a cap designed and made by Betsy Ross
D.
there were 13 stars in the middle of the flag
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