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【判断题】
设理想变压器的变比为n,当n˃1升压变压器,当n˂1降压变压器。
A.
正确
B.
错误
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参考答案:
举一反三
【判断题】Roles within the buying center are socially constructed, which means people define how they will act in the business-to-business purchase process and how they will interact with others.
A.
正确
B.
错误
【单选题】Where wealth ______, they constructed the equivalent of kingdoms, huge shining towers of glass and steel.
A.
relieved
B.
resided
C.
resumed
D.
released
【简答题】They constructed the bridge in a year.
【单选题】在使用GPRS测试软件E7478A对GPRS网络进行测试时,发现手机已经ATTACH到GPRS网上,但是在进行拨号连接时出错,那么不可能导致上述问题的是:()
A.
安装的modem类型不对,不是标准类型
B.
测试手机设置的数据速率与所安装modem的数据速率不匹配,超过了modem的最高数据速率
C.
测试手机的data口数据线所连接的串口与软件设置的端口不一致
D.
在拨号连接中没有设置DNS
【简答题】Civil engineering projects don ’ t exist in the classroom or in the office or in the laboratory. They exist out in the field, in society. They are the highways, the transit systems, the land-slides to...
【简答题】在直角坐标系xOy中,曲线C 1 的点均在C 2 :(x-5) 2 +y 2 =9外,且对C 1 上任意一点M,M到直线x=-2的距离等于该点与圆C 2 上点的距离的最小值。 (1)求曲线C 1 的方程; (2)设P(x 0 ,y 0 )(y 0 ≠±3)为圆C 2 外一点,过P作圆C 2 的两条切线,分别与曲线C 1 相交于点A,B和C,D,证明:当P在直线x=-4上运动时,四点A,B,C,D的...
【单选题】设一动点P到直线x=3的距离与它到点A(1,0)的距离之比为 3 3 ,则动点P的轨迹方程是(  )
A.
x 2 3 + y 2 2 =1
B.
x 2 3 - y 2 2 =1
C.
(x-4 ) 2 3 - y 2 6 =1
D.
x 2 2 + y 2 3 =1
【简答题】_____是指通过移动网络,利用短信、GPRS等空中接口,与后台支付系统建立连接,实现各种转账、消费等支付功能。
【单选题】The words "about" or "approximately" used in connection with the amount of the credit or the quantity or the unit price stated in the credit are to be constructed as allowing a tolerance not to exceed...
A.
3%
B.
5%
C.
7%
D.
10%
【简答题】What role do frames play in the way they are constructed so that bargainers define problems and courses of action jointly through their talk?
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