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【判断题】
如果用按和接触器控制电动机具有双重互锁（联锁）的正反向运转电路中接触器的主触点一旦熔焊不断开，再直接按反转按，将会发生短路事故。（ ）A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】基准键分别是哪些键?
A.
A S D F J K L ；
B.
S D F G H J K L
C.
Caps Lock A S D K L : '
D.
A S D F J K L M
【简答题】酿造红葡萄酒的优良品种有_______、_________、__________等
【单选题】基准键分别是哪些键?
A.
[A] [S] [D] [F] [J] [K] [L][;]
B.
[S] [D] [F] [G][H][J][K ][L]
C.
[Caps Lock] [A] [S] [D] [J][K] [L] [;]
【单选题】What attitude does the speaker hold toward the architect-craftsmen in the early 20th century according to the passage?
A.
Sympathy.
B.
Appreciation.
C.
Scorn.
D.
Irony.
【单选题】What does the author refer to as one of the greatest failures of the 107th Congress?
A.
The House of Representatives did not agree with the Senate.
B.
The unemployment insurance extension was not approved.
C.
A boost to the economy was not provided.
D.
Relief to those in need was not offered.
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