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【单选题】
关于电位的概念，（ ）的说法是正确的。A.
电位就是电压
B.
电位是绝对值
C.
电位是相对值
D.
参考点的电位不一定等于零
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反馈参考答案：
举一反三
【简答题】请将与下列食物重量等值的食品交换份数值连起来
【判断题】The cash ratio is usually a good indication of the liquidity of the firm.
A.
正确
B.
错误
【单选题】An increase in which one of the following will increase a firm's quick ratio without affecting its cash ratio?
A.
accounts payable
B.
cash
C.
inventory
D.
accounts receivable
E.
fixed assets
【单选题】信息系统安全运营大致分为信息系统安全防护和信息系统安全运维,其中信息系统的安全运维工作分为三个层次开展,不包括( )
A.
基础实践层
B.
安全能力层
C.
信息收集层
D.
展示决策层
【单选题】When an open occurs on the input of a CMOS gate, the output will ________.
A.
go LOW, because there is no current in an open circuit
B.
go HIGH, since full voltage appears across an open
C.
be treated as if the open input were a HIGH
D.
be unpredictable; it may go HIGH or LOW
【判断题】The cash ratio is usually a good indication of the liquidity of the firm.
A.
正确
B.
错误
【单选题】Calculate the input impedance for voltage series feedback when the amplifier has = 10 kΩ, amplifier gain is A = -2000, and F= . ( )
A.
input impedance with feedback 10 kΩ
B.
input impedance with feedback 410 kΩ
C.
input impedance with feedback 244 Ω
D.
input impedance with feedback 50 Ω
【单选题】A company sells inventory for cash to a customer, at a selling price which is below the cost of the inventory items. How will this transaction affect the current ratio and the quick ratio immediately ...
A.
Current ratio: Increase Quick ratio: Increase
B.
Current ratio: Increase Quick ratio: Decrease
C.
Current ratio: Decrease Quick ratio: Increase
D.
Current ratio: Decrease Quick ratio: No change
【简答题】Cash dividends/ Net income is called the _________ ratio.
【单选题】When an open occurs on the input of a CMOS gate, the output will ________.
A.
o LOW, because there is no current in an open circuit
B.
go HIGH, since full voltage appears across an open
C.
be treated as if the open input were a HIGH
D.
be unpredictable; it may go HIGH or LOW
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