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【简答题】
在电路中 R1=20Ω,R2=30Ω,当两电阻串联时,其等效电阻为 ____ Ω,两电阻的电压比U R1 : U R2 = ____ ,电流比 I R1 : I R2 = ____ ;若将这两个电阻并联,则等效电阻为 ___ ,两电阻电压比 U R1 : U R2 _ = ___ ,两电阻的电流比 I R1 : I R2 _ = ____ 。
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举一反三
【多选题】According to Dr. J, What is a new year's resolution?
A.
Something you do new
B.
Something better that you do to improve your life
C.
Something to improve yourself
D.
Something to make yourself a better person
【单选题】关于上颌第一前磨牙描述,错误的是
A.
颊面近中缘稍长，远中缘较短而突
B.
颊尖偏远中，舌尖偏近中
C.
舌面外形高点在舌1/3处
D.
牙合面呈轮廓显著的六边形
E.
近中面有来自牙合面的近中沟
【简答题】理论的主要内容有哪些?
【单选题】Which statement is true according to J. K. Galbraith?
A.
Education helps increase national income more than tangible capital goods does.
B.
Investment in railways, dams, machine tools, etc. improves human intellect.
C.
Intellectual improvements increases national income more than money can do.
D.
Money spent on human beings is better than that in goods.
【单选题】According to Steven J. Harper,
A.
leaders in the legal profession are not to blame.
B.
the legal profession will burst like a bubble.
C.
the inequity in the profession should be adjusted.
D.
lawyers are actually a fad not a necessity.
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