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【单选题】
亚硫酸氢钠是一种常用的抗氧剂,最适合用于( )A.
强碱溶液
B.
中性溶液
C.
偏碱溶液
D.
偏酸溶液
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反馈参考答案：
举一反三
【简答题】在圆柱或圆锥内表面形成的螺纹称( )螺纹;绘制不穿通螺纹孔时,锥顶角画成( )。
【单选题】The chief manager has decided to put _____ he thinks is energetic, clever and capable to the position of the leadership of the company.
A.
whatever
B.
whoever
C.
whichever
D.
whomever
【单选题】In projects where it is desirable to obtain input from a large number of people, a(n) __________, such as that shown in the accompanying figure, can be a valuable tool.
A.
interview
B.
questionnaire
C.
sample
D.
research report
【单选题】The manager will put ______ he thinks has a strong sense of duty in the leadership position. [ ]
A.
anyone
B.
whoever
C.
whomever
D.
who
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