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【单选题】
当负载可以任意变化时，负载上获得最大功率的条件是（ ）。
A.
负载阻抗与等效电源内阻抗相等
B.
负载阻抗模与等效电源内阻抗模相等
C.
负载阻抗角与等效电源内阻抗角相等
D.
负载阻抗等于等效电源内阻抗的共轭
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参考答案：
举一反三
【判断题】Specialized transduction is used to map distances between phage genes.
A.
正确
B.
错误
查看完整题目与答案
【单选题】墨卡托方位法把世界划分成了()个区域,提高了地理位置的精确性。
A.
50.0
B.
58.0
C.
60.0
D.
68.0
查看完整题目与答案
【单选题】下列姿势对脊柱负荷最大的是:
A.
卧位
B.
站位无弯腰
C.
侧卧位
D.
靠坐位
E.
坐位弯腰
查看完整题目与答案
【单选题】The El Nino ('little boy' in Spanish) that pounded the globe between the summers of 1997 and 1998 was in some measure the most destructive in this century. Worldwide damage estimates exceed ￡ 20 billi...
A.
the normal westward trade winds weaken
B.
the normal eastward trade winds weaken
C.
the normal westward trade winds strengthen
D.
the normal eastward trade winds strengthen
查看完整题目与答案
【单选题】A hand held instrument used to measure distances between objects and the ship is a ______.
A.
vernier
B.
psychrometer
C.
hygrometer
D.
stadimeter
查看完整题目与答案
【单选题】The Columbia University researchers studied the relationship between the past El Nino occurrences and sea-surface temperatures.
A.
Right
B.
Wrong
C.
Not mentioned
查看完整题目与答案
【判断题】人生有五毒，好累呀，职业倦怠，好忙呀，以忙为荣，好烦呀，情绪不安，好苦呀，我安全感好惨呀，得病没命。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which one maintains distances between trains in both direction?
A.
bond
B.
safe braking distance
C.
single track ABS
D.
double track ABS
查看完整题目与答案
【单选题】Although one accountant mistakes to write down a credit sale as a cash sale, the figure on the debit side of the trial balance is right.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which one maintains distances between trains in one direction?
A.
bond
B.
safe braking distance
C.
single track ABS
D.
double track ABS
查看完整题目与答案
相关题目：
【判断题】Specialized transduction is used to map distances between phage genes.
A.
正确
B.
错误
查看完整题目与答案
【单选题】墨卡托方位法把世界划分成了()个区域,提高了地理位置的精确性。
A.
50.0
B.
58.0
C.
60.0
D.
68.0
查看完整题目与答案
【单选题】下列姿势对脊柱负荷最大的是:
A.
卧位
B.
站位无弯腰
C.
侧卧位
D.
靠坐位
E.
坐位弯腰
查看完整题目与答案
【单选题】The El Nino ('little boy' in Spanish) that pounded the globe between the summers of 1997 and 1998 was in some measure the most destructive in this century. Worldwide damage estimates exceed ￡ 20 billi...
A.
the normal westward trade winds weaken
B.
the normal eastward trade winds weaken
C.
the normal westward trade winds strengthen
D.
the normal eastward trade winds strengthen
查看完整题目与答案
【单选题】A hand held instrument used to measure distances between objects and the ship is a ______.
A.
vernier
B.
psychrometer
C.
hygrometer
D.
stadimeter
查看完整题目与答案
【单选题】The Columbia University researchers studied the relationship between the past El Nino occurrences and sea-surface temperatures.
A.
Right
B.
Wrong
C.
Not mentioned
查看完整题目与答案
【判断题】人生有五毒，好累呀，职业倦怠，好忙呀，以忙为荣，好烦呀，情绪不安，好苦呀，我安全感好惨呀，得病没命。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which one maintains distances between trains in both direction?
A.
bond
B.
safe braking distance
C.
single track ABS
D.
double track ABS
查看完整题目与答案
【单选题】Although one accountant mistakes to write down a credit sale as a cash sale, the figure on the debit side of the trial balance is right.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Which one maintains distances between trains in one direction?
A.
bond
B.
safe braking distance
C.
single track ABS
D.
double track ABS
查看完整题目与答案
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