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【判断题】
葡萄酒按照颜色可以分为红葡萄酒、白葡萄酒以及桃红葡萄酒。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】A basic characteristic for an ideal independent voltage source is:
A.
the voltage across it has no relationship with the current flowing through it, the current can be any value and is decided by the source and the external circuit.
B.
the voltage across it has relationship with the current flowing through it, the current can ‘t be any value and is decided by the voltage source.
C.
the voltage across it has no relationship with the current flowing through it, the current can be any value and flows out from the positive terminal of the voltage source.
D.
the voltage across it has relationship with the current flowing through it, the current can be any value and may flow out of any terminal of the voltage source.
【判断题】An ideal voltage source is a circuit element that maintains a prescribed voltage across its terminals regardless of the current flowing in those terminals.
A.
正确
B.
错误
【简答题】背景 某机场工程承包公司在机坪扩建工程中浇筑机场道面混凝土时，第五周计划和实际完成的工程量、单价、损耗率如下表，目标材料费593600元，实际材料费为608399元，比目标增加14799元。 商品混凝土目标成本与实际成本对比表 问题 (1)试述因素分析法的基本理论。 (2)根据表中所给资料，用因素分析法分析其材料费增加的原因。
【多选题】对测绘工作而言，航空摄影测量可分为外业与内业工作两大部分。下列哪些是外业工作？
A.
航空摄影获取原始影像
B.
控制点测量
C.
地物信息调绘
D.
地物信息补绘
E.
影像定向
F.
影像匹配
G.
正射影像生成
H.
立体测图
I.
DEM生成
【单选题】Assuming ideal op amps, what is the voltage gain and the input resistance?【图片】
A.
-10V/V, 10 k Ω
B.
10V/V, 10 k Ω
C.
-10V/V, 0
D.
10V/V, 100 k Ω
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