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【判断题】
线性方程组总有解。
A.
正确
B.
错误
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参考解析:
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举一反三
【单选题】The investigation gives support to the ________ between profit and top manager's pay.
A.
analogy
B.
paradox
C.
correlation
D.
illusion
【单选题】土的颗粒级配累积曲线是最常用的土体颗粒分析成果,根据它可以得到不同粒组的百分含量。工程中,通常将对应于累积含量为60%,50%,30%和10%的粒径,分别称为( )。
A.
有效粒径(d60),平均粒径(d50),中值粒径(d30)及限制粒径(d10)
B.
限制粒径(d60),平均粒径(d50),中值粒径(d30)及有效粒径(d10)
C.
有效粒径(d60),中值粒径(d50),限制粒径(d30)及平均粒径(d10)
D.
限制粒径(d60),平均粒径(d50),有效粒径(d30)及平均粒径(d10)
【判断题】D/A转换器是将模拟量转换为数字量的器件。
A.
正确
B.
错误
【单选题】A profit centre manager claims that the poor performance of her division is entirely due to factors outside her control. She has submitted the following table along with notes from a market expert, wh...
A.
Material cost only
B.
Sales volume and sales price
C.
Sales price and material cost
D.
Sales price only
【单选题】消火栓是与自来水管网直接连通的,它适合扑救()、棉絮类火灾。
A.
电器
B.
木材
C.
煤气
【判断题】D/A转换器是将模拟量转换为对应的数字量的器件。()
A.
正确
B.
错误
【判断题】A/D转换器是将模拟量转换为数字量的器件。
A.
正确
B.
错误
【判断题】将模拟量 转换为数字量 的 器件是 D/A 转换器 。( )
A.
正确
B.
错误
【单选题】将模拟量转换为数字量的器件是:
A.
A/D转换器
B.
D/A转换器
C.
电阻网络
D.
求和放大器
【单选题】Why might a manager for a non-profit organization seem as concerned with his or her organization's financial well-being as a for-profit manager?
A.
Non-profit managers are evaluated on financial performance only.
B.
Non-profit managers try to give the illusion that they care about the "bottom line."
C.
Many not-for-profit organizations have tight budgets and must be very efficient.
D.
Non-profit organizations have an obligation to turn a profit.
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