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【单选题】
常用的通信有线介质包括双绞线、同轴电缆和()。A.
微波
B.
红外线
C.
光纤
D.
激光
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举一反三
【简答题】该逻辑函数的对偶式的最简与或形式为
【单选题】What does the passage mainly discuss?
A.
Two types of only children.
B.
Parents' responsibilities.
C.
The necessity of family planning.
D.
The relationship between parents and children.
【单选题】如下图,电灯的灯丝电阻为2Ω,电池电动势为2V,内阻不计,线圈电阻为零,当K突然断开时,下列说法正确的是()。
A.
电灯立即变暗再熄灭,且电灯中电流方向与K断开前方向相同
B.
电灯立即变暗再熄灭,且电灯中电流方向与K断开前方向相反
C.
电灯会突然比原来亮一下再熄灭,且电灯中电流方向与K断开前相同
D.
电灯会突然比原来亮一下再熄灭,且电灯中电流方向与K断开前相反
【单选题】Experts call on parents, especially ________ of the broken families, ________ the full responsibilities and better care and love for children. [ ]
A.
that; to burden
B.
them; to take on
C.
those; shouldering
D.
those; to shoulder
【简答题】在苏州沧浪亭五百明贤祠内,“秋风京洛,驰想莼鲈,首丘一赋,达士楷模”赞颂的是西晋著名文学家 。
【单选题】At the same time，it is ______ for you to signify your acknowledgement of the responsibility for the collision by signing the copies of this letter hereto attached and to return me two copies in due ti...
A.
essential
B.
important
C.
good
D.
a better operation
【简答题】在灰分测定中, 反映的是污染的泥砂和铁、铝等氧化物及碱土金属的碱式磷酸盐含量。
【单选题】178 A task-oriented family tree of activities is a:
A.
Detailed plan.
B.
Linear responsibility chart.
C.
Work breakdown structure.
D.
Cost account coding system.
E.
Work package description
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