【单选题】【消耗次数:1】
All people, [] they are old or young, have been trying their best to help those in need.
even if
whether
no matter
however
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相关题目
【单选题】 Young drivers under 25 have the highest number of accidents while those over 50 have ______.
①  the less
②  the least
③  the fewer
④  the fewest
【单选题】 Young people who have got jobs may realize university lessons cant be the only preparation for all of the situations ________ appear in the working world.
①  where
②  when
③  that
④  what
【单选题】 It has been raining all day, but even though it______, we______there by tomorrow.
①  didnt rain, couldn’t get
②  hadn’t rained, couldn’t get
③  didn’t rain, can’t get
④  hadn’t rained, can’t get
【单选题】 The open university was started in order to help those who ___ having a university education when they were young.
①  stopped
②  failed
③  missed
④  ceased
【单选题】 The old couple, whose kids have all passed away, have to ( ) only with their small pensions.
①  get at
②  get to
③  get by
④  get through
【单选题】 There have been few novels by revolutionaries free of those faults____ by Marx and Engels.
①  punished
②  blamed
③  criticized
④  scolded
【单选题】 The lives of many people have been enriched_________ adult education.
①  because
②  because of
③  as a result
④  so that
【多选题】 The lives of many people have been enriched_________ adult education.
①  because
②  because of
③  due to
④  owing to
【判断题】 Given that they are fresh from the university, the young people have done a good job.
①  正确
②  错误
【判断题】 A: Have you been wasting time on computer games again? B: Not really. I’ve been studying a lot and I need a break.
①  正确
②  错误
随机题目
【单选题】 电路图如图3所示,已知,,,,则流过R3上的电流i为。
①  0.3A
②  0.6A
③  0.4A
④  0.2A
【判断题】 叠加定理只适用于直流电路。
①  正确
②  错误
【判断题】 当电路中的参考点改变时,某两点间的电压也随之改变。
①  正确
②  错误
【单选题】 电路如图2-1所示,若电流源的电流IS1A,则电路的功率情况为()
①  电阻吸收功率,电流源和电压源供出功率
②  电阻与电流源吸收功率,电压源供出功率
③  电阻与电压源吸收功率,电流源供出功率
④  电阻无作用,电流源吸收功率,电压源供出功率
【单选题】 在图2电路中,电流源的功率为______。
①  吸收6W
②  发出6W
③  吸收4W
④  发出4W
【单选题】 图2-1所示电路中,当R2增大时,电流源IS两端电压U将。
①  不变
②  降低
③  升高
④  以上都不是
【单选题】 如图2-5所示的电路图中,若I=0,则US为()
①  60V
②  70V
③  90V
④  -10V
【单选题】 图2-2所示电路的工作情况是。
①  电压源发出功率
②  电流源发出功率
③  电压源和电流源都发出功率
④  电压源和电流源都发出功率
【单选题】 如图2-4所示电路的等效电导G为。
① 
②  6S
③  27S
【单选题】 如图2-8所示的电路中,RL=10Ω,RL能获的最大功率的条件是()
①  RS=10Ω
②  RS=0Ω
③  RS=5Ω
④  RS=∞