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硫酸盐呼吸是一类硫酸盐还原细菌的专性厌氧菌,在无氧条件下,以( )为电子受体,获得能量的方式。最终产物是( )。
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供应商
B.
科学环境
C.
营销中间商
D.
顾客
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“wr”
B.
“br”
C.
“”
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A.
"wr"
B.
"bw"
C.
""
D.
"br+"
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政治
B.
经济
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法律
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【单选题】以下选项中,不是 Python 文件打开的合法模式组合是
A.
"r"
B.
"a"
C.
"+"
D.
"w"
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A.
"br+"
B.
"tr"
C.
"wr"
D.
"bw"
【简答题】按要求改写下列句子 1. It is my first time to be on a plane, so I don't know what I should do.(改为同义句) It is my first time to travel ________ plane, so I don't know what __________ __________. 2. 'I am popular a...
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"a+"
B.
"t+"
C.
"r+"
D.
"w+"
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