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【简答题】
1) One of the advantages of e-mail is that you can deal with messages _________________. 2) The annoyance of e-mail is that the ____________ to your e-mail may come in five days because e-mail is not an ________________________. 3) If you ____________ a meeting an hour later with e-mail, the chance that the participants will read the message will be pretty ____________. 4) Too many e-mail users assume that ____________ someone receives an e-mail, the person will ____________ it. 5) Remember, e-mail is not designed for immediate response; it’s designed for ____________. 6) The features of some e-mail systems can ____________ you when a person has received your e-mail and may also ____________ you when the person has read it. 7) Since there are no facial and voice ____________ to help e-mail, users have come up with something called “ ____________ ” .
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【单选题】利用准同步法对同步发电机的并车操作，下列说法错误的是( )
A.
为满足频差条件，并车时频差越小越好
B.
并车时为避免并机逆功率跳闸，要求整步表指针沿“快”的方向旋转
C.
按合闸按钮应有适当的提前相角
D.
并车时频差不能大于允许值，即频差周期不得小于2s
【简答题】下表是一条有 8 座车站轻轨线路的全日站间到发客流量斜表,注:由 A-H 为上行,若已知上、下单向分时客流不均衡系数均为 2.1 ,全日营业小时数为 15h ,列车编组为 6 辆,定员为 260 ,高峰小时满载率为 120% ,,列车周转时间为 50 分钟,试计算在高峰小时内列车开行数及发车间隔,该线路应配备多少组运用车? a=Pmax/(P/H)
【简答题】下表是一条有 8 座车站轻轨线路的全日站间到发客流量斜表,请编制该线路客流计划,注 :由 A-H 为上行 .
【简答题】急回机构设计的关键是要找到一个圆，课程视频中称这个圆为：
【单选题】用准同步法对同步发电机的并车操作,下列说法错误的是 ______ 。
A.
为满足频差条件，并车时频差越小越好
B.
按合闸按钮应有适当的提前相角
C.
并车时为避免并机逆功率跳闸，要求整步表指针沿 “ 快 ” 的方向旋转
D.
并车时频差不能大于允许值，即频差周期不得小于 2 s
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