皮皮学,免费搜题
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搜题
【判断题】
电动机是将电能转化为机械能的装置,按照供电电源不同,可分为交流电动机和直流电动机两大类。()
A.
正确
B.
错误
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举一反三
【单选题】David and Laura are probably ______.
A.
friends
B.
neighbour
C.
husband and wife
【简答题】Listen to Imogen, David, Frank and Laura. What cities are they describing? What words helped you decide? Match the photos (a – d) with the cities.
【简答题】Task 3 You are Laura, a communication assistant at Walmart, Inc. Your supervisor, David Oaks, needs to write a press release announcing the opening of a new Walmart store. You are going to leave a voi...
【单选题】.五只等值电阻,如果串联后的等效电阻是1KΩ,若将其并联,则等效电阻为( )。
A.
200Ω
B.
1KΩ
C.
5KΩ
【单选题】需求拉动的通货膨胀产生的原因可能是()
A.
原材料价格的过度上升
B.
消费的过度增长
C.
工资的过度增长
D.
利润的过度增加
【单选题】David and Laura are probably__.
A.
friends
B.
neighbors
C.
husband and wife
【单选题】五只等值的电阻,如果串联后的等效电阻是1kΩ,若将其并联,则等效电阻为( )。
A.
40Ω
B.
200Ω
C.
1kΩ
D.
5kΩ
【单选题】五只等值电阻,如果串联后的等效电阻是1KΩ,若将其并联,则等效电阻为( )。
A.
40Ω
B.
200Ω
C.
1KΩ
D.
5KΩ
【简答题】检修故障的方法很多,有________法、________法、________法等。
【简答题】You are Laura, a communication assistant at Walmart, Inc. Your supervisor, David Oaks, needs to write a press release announcing the opening of a new Walmart store. You are going to leave a voice mess...
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