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【判断题】
D触发器的特征方程Qn+1=D，而与Qn无关，所以，D触发器不是时序电路。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】牙尖交错位的描述正确的是
A.
上、下颌牙弓 ( 牙合 ) 面接触最广，牙尖呈相互交错接触时咬合关系
B.
一个稳定而可重复性的位置，是下颌骨对上颌骨的位置
C.
上、下颌牙弓 ( 牙合 ) 面接触最广，牙尖呈相互交错接触时下颌骨的位置
D.
下颌不偏左右，髁突处于关节窝的后位，向上有牙接触时，下颌骨对上颌骨的位置
E.
下颌不偏左右，髁突处于关节窝的中位，在适当的垂直距离时，下颌骨对上颌骨的位置
【多选题】Which of the following statements about the UK economy after World War II are true?
A.
Britain ranks the second in industrial investment abroad.
B.
Britain has experienced a relative economic decline since 1945.
C.
There has been a long period of the fall of living standards in the UK.
D.
Britain remains one of the largest industrial economies.
【单选题】Which of the following statements about the UK economy after World War II is NOT true?
A.
Britain ranks the second in industrial investment abroad.
B.
Britain has experienced a relative economic decline since 1945.
C.
There has been a period of steady decreasing of living standards.
D.
Britain remains one of the Group of Seven large industrial economies.
【单选题】Which of the following statements about the UK economy after World War II is NOT true?
A.
Britain has experienced a relative economic decline since 1945.
B.
Britain ranks the second in industrial investment abroad.
C.
Britain remains one of the Group of Seven large industrial economies.
D.
There has been a period of steady decreasing of living standards.
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