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【单选题】
仪器分析实验常用的标准加入工作曲线法比较适于: ( )A.
大批量试样的测定
B.
多组分混合体系的同时测定
C.
少量组成复杂的试样的测定
D.
大批量基体简单试样的测定
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】---When is Jim's birthday? ---________ August 11th. [ ]
A.
They're
B.
It's
C.
Jim's
D.
Here
【简答题】不可逆循环热效率一定小于可逆循环热效率?
【单选题】— Could you tell me____________? — Over there.
A.
where does Jim live
B.
where Jim lives
C.
when will Jim come back
D.
when Jim will come back
【单选题】When the writer says that Jim has a full-time job at home, he means Jim ______.
A.
makes shoes in his home
B.
does extra work a night
C.
does his own car and home repairs
D.
keeps house and looks after his children
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