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【单选题】
下列关于中国古代选官制度演变的表述正确的是（） ①先秦主要实行官位世袭的制度 ②九品中正制属于察举制的发展，仍然是自下而上的选官制度 ③科举制属于考试选官的制度 ④科举制与察举制从考选对象、内容、程序等方面都带有封闭性的特征A.
①②③④
B.
①②③
C.
①③④
D.
①②④
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【单选题】The computer mouse derives its name from the cable that goes out its body, which looks like the tail of a mouse.
A.
Right
B.
Wrong
C.
Not mentioned
【多选题】一级负荷供电电源应符合( )的要求。
A.
应由两个电源供电，当一个电源发生故障时，另一个电源不致同时受到损坏
B.
在负荷较小或地区供电条件困难时，可由一回6kV及以上专用架空线路供电
C.
如--级负荷容量较大或有高压用电设备时应采用两路高压电源
D.
如一级负荷容量不大时，应优先从电力系统或临近单位取得第二低压电源
【单选题】Just as the saying goes, “_______”, computer games also have some disadvantages though they are popular among teenagers.
A.
No garden is without weeds
B.
Every little makes a nickel
C.
Time waits for no man
D.
The onlooker sees the game best
【简答题】The computer mouse derives its name from the cable that goes out its body, which looks like the tail of a mouse.
【简答题】What is the cause of the long waiting? [A] The computer of the place goes wrong. [B] There aren't enough people selling tickets. [C]The tickets are not many. [D] They haven't mentioned about it.
【单选题】What is the cause of the long waiting?
A.
The computer of the place goes wrong.
B.
There aren't enough people selling tickets.
C.
The tickets are not many.
D.
They haven't mentioned about it.
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