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【简答题】
用AD590设计一个可测量T1、T2、T3这3个温度点平均温度的测量电路。已知AD590温度系数为1μA／℃，且当被测温度为0时，AD590输出电流是0。限定条件为：供电电源15V和一15V，仅有一个理想和若干阻值为1kΩ整数倍的电阻可供选用。要求：(a)在0～100℃测温时，电路输出电压为0～10V。(b)在0～100％测温时，电路输出电压为0～10V。
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举一反三
【单选题】Why does the author say space projects are practical?
A.
Because they make science exciting.
B.
Because they promote economic growth.
C.
Because they increase Americas national power.
D.
Because they show what technology can bring.
【单选题】On hearing the news that they had won the match, the students shouted in___________ voices.
A.
exciting, exciting
B.
excited, excited
C.
excited, exciting
D.
exciting, excited
【单选题】顾客在购买眼镜时,总是把商品的质量、价格、款式、商标、包装等综合在一起,形成对商品的整体印象,这是()的反映。
A.
知觉的选择性
B.
知觉的整体性
C.
知觉的理解性
D.
知觉的恒常性
【多选题】按《通则》解释，下述各项对CFR买卖双方义务正确的有（）
A.
买方与船方订立运输契约
B.
卖方负责定期班轮公司在订约时收取的卸货费用
C.
货物在装船时越过船舷后风险由买方承担
D.
卖方负责办理从装运港到目的港的海运货物保险
E.
卖方负责与承运人和保险人分别订立契约
【单选题】There was a(n) __________ moment when the plane suddenly dropped.
A.
anxious
B.
worried
C.
secure
D.
exciting
【简答题】Have you heard about “Survival Holidays”? It is for children to go into the lonely place for exciting activities. Now about 1,100 companies are allowed to take children into the great outdoors without...
【单选题】His staff like working for him because______.
A.
they are paid well
B.
they find it an exciting place to work
C.
they are involved in making decisions
【单选题】---What do you think of the book ? --- I don’t like it at all . It’s _____ interesting _____ exciting .
A.
neither , nor
B.
not , but
C.
not only , but also
D.
either , or
【单选题】The program was so ______ that the children kept their eyes ______ on the screen.
A.
exciting fixed
B.
exciting fixing
C.
excited fixed
D.
excited fixing
【单选题】From the _____ expression on her face, we knew that she was very _____ with the result. [ ]
A.
exciting; pleasing
B.
exciting; pleased
C.
excited; pleased
D.
excited; pleasing
相关题目：
【单选题】顾客在购买眼镜时,总是把商品的质量、价格、款式、商标、包装等综合在一起,形成对商品的整体印象,这是()的反映。
A.
知觉的选择性
B.
知觉的整体性
C.
知觉的理解性
D.
知觉的恒常性
参考解析：
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