题目内容

“固氮作用”的英语词汇是______()

A. nitrogen fixation
B. free oxygen
C. by-product
D. the amount of proteins

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“副产品”的英语词汇是______()

A. by-product
B. nitrogen fixation
C. the amount of proteins
D. free oxygen

Which of the following is the name of CuI()

A. copper (I) iodide
B. cuprous chloride
C. copper (II) iodide
D. cupric iodide

“三键”的英语词汇是__()

A. a triple bond
B. nitrogen fixation
C. a double bond
D. a single bond

“稀硝酸溶液”的英语词汇是______()

A. a weak solution of nitric acid
B. free oxygen
C. by-product
D. the amount of proteins

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