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【单选题】
晶体三极管处于饱和状态时,它的集电极电流将( )
A.
随基极电流的增加而增加
B.
随基极电流的增加而减小
C.
与基极电流变化无关，只取决于VCC 和RC
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举一反三
【单选题】Under fixed exchange rate, in general
A.
the expected rate of domestic currency depreciation is high
B.
the expected rate of currency depreciation is one
C.
the domestic and foreign interest rates are equal, R = R
D.
the foreign and domestic interest rates are unequa
查看完整题目与答案
【单选题】企业根据经营方针，由高阶层领导确定一定期间的预算额而形成的成本，称之为（）
A.
约束性固定成本
B.
酌量性固定成本
C.
混合成本
D.
变动成本
查看完整题目与答案
【单选题】A fixed exchange rate system without a band of allowed fluctuation would require the nation's monetary authorities to intervene in the foreign exchange market______.
A.
never
B.
seldom
C.
constantly
D.
we cannot say
查看完整题目与答案
【单选题】采用B型超声多普勒法探测到胎心,最早是在妊娠第
A.
5周
B.
6周
C.
7周
D.
8周
查看完整题目与答案
【单选题】从生产线上每隔 1 小时随机抽取 10 分钟的产品进行检验,这种方式属于
A.
等距抽样
B.
类型抽样
C.
整群抽样
D.
简单随机抽样
查看完整题目与答案
【单选题】Thermocouples are often used to measure _____ in the machines.
A.
liquid viscosity
B.
pressure
C.
rotate
D.
temperature
查看完整题目与答案
【单选题】In a fixed exchange rate system, speculative selling of a currency is based on anticipation of
A.
appreciation
B.
devaluation
C.
a foreign trade surplus
D.
interest rate increase
查看完整题目与答案
【单选题】企业通过商业信用筹资时,其资金来源是
A.
政府财政资金
B.
银行信贷资金
C.
企业自留资金
D.
其他企业资金
查看完整题目与答案
【单选题】Thermocouples often be used to measure ________ in the machinery.
A.
pressure
B.
liquid viscosity
C.
temperature
D.
rotate
查看完整题目与答案
【单选题】Thermocouples are often used for measuring temperatures, which of the following descriptions are valid for a thermocouple?
A.
A junction between two dissimilar metals generates a small voltage.
B.
A semi-conductor device that exhibits a negative coefficient of, resistance with temperature.
C.
A resistance device that exhibits a positive coefficient of resistance with temperature.
D.
A quartz crystal that changes its resonant frequency with temperature.
查看完整题目与答案
相关题目：
【单选题】Under fixed exchange rate, in general
A.
the expected rate of domestic currency depreciation is high
B.
the expected rate of currency depreciation is one
C.
the domestic and foreign interest rates are equal, R = R
D.
the foreign and domestic interest rates are unequa
查看完整题目与答案
【单选题】企业根据经营方针，由高阶层领导确定一定期间的预算额而形成的成本，称之为（）
A.
约束性固定成本
B.
酌量性固定成本
C.
混合成本
D.
变动成本
查看完整题目与答案
【单选题】A fixed exchange rate system without a band of allowed fluctuation would require the nation's monetary authorities to intervene in the foreign exchange market______.
A.
never
B.
seldom
C.
constantly
D.
we cannot say
查看完整题目与答案
【单选题】采用B型超声多普勒法探测到胎心,最早是在妊娠第
A.
5周
B.
6周
C.
7周
D.
8周
查看完整题目与答案
【单选题】从生产线上每隔 1 小时随机抽取 10 分钟的产品进行检验,这种方式属于
A.
等距抽样
B.
类型抽样
C.
整群抽样
D.
简单随机抽样
查看完整题目与答案
【单选题】Thermocouples are often used to measure _____ in the machines.
A.
liquid viscosity
B.
pressure
C.
rotate
D.
temperature
查看完整题目与答案
【单选题】In a fixed exchange rate system, speculative selling of a currency is based on anticipation of
A.
appreciation
B.
devaluation
C.
a foreign trade surplus
D.
interest rate increase
查看完整题目与答案
【单选题】企业通过商业信用筹资时,其资金来源是
A.
政府财政资金
B.
银行信贷资金
C.
企业自留资金
D.
其他企业资金
查看完整题目与答案
【单选题】Thermocouples often be used to measure ________ in the machinery.
A.
pressure
B.
liquid viscosity
C.
temperature
D.
rotate
查看完整题目与答案
【单选题】Thermocouples are often used for measuring temperatures, which of the following descriptions are valid for a thermocouple?
A.
A junction between two dissimilar metals generates a small voltage.
B.
A semi-conductor device that exhibits a negative coefficient of, resistance with temperature.
C.
A resistance device that exhibits a positive coefficient of resistance with temperature.
D.
A quartz crystal that changes its resonant frequency with temperature.
查看完整题目与答案