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【单选题】
His father _______ English here since he graduated from Peking University.A.
has taught
B.
teaches
C.
taught
D.
had taught
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举一反三
【简答题】词性转化：根据提示写出相应单词。 1. 不利条件；不便之处n.______ 有利条件；优势n.______ 2. 毕业vi.______ 毕业生n. ______ 毕业n.______ 3. 组织；成立vt.______ 有组织的adj.______ 组织；机构n.______ 4. 决定；确定；下定决心vt.______ 坚决的；有决心的a...
【多选题】What does a room attendant say when she receives the complaint from the guest that his luggage hasn’t arrived?
A.
I am sorry to hear that, I am sure the bellman will send it up to you soon.
B.
I am sorry for bringing you the inconvenience. I will ask about the bellman immediately.
C.
Could you just wait? We are all busy today.
D.
I don’t know who is the one sending you
【单选题】Most of the guest()when he arrived at the party.
A.
left
B.
was left
C.
have left
D.
had left
【简答题】vi. 毕业 n. 毕业生
【单选题】求解生产与存储问题时,下列说法正确的是: ( )
A.
状态变量为期初存储量，决策变量为生产量
B.
阶段指标函数是从第k阶段到第n阶段的总成本
C.
过程指标函数是从第k阶段到下一阶段的总成本
D.
状态变量为需求量，决策变量为生产量
【简答题】Tom’s family was holding a larger evening party. It was to celebrate Tom’s 15th birthday. At about 6 o’clock, Jim ,Tom’s best friends , arrived with a big birthday gift. Tom opened it in front of Jim ...
【简答题】试推导如下图所示电网络系统的传递函数 U 2 ( s ) /U 1 ( s )
【简答题】vi. 毕业 n. 大学毕业生
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