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【单选题】
（ ）是指运用计算机科学的基础概念去求解问题、设计系统和理解人类行为。A.
理论思维
B.
实验思维
C.
计算思维
D.
科学思维
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皮皮学刷刷变学霸
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【简答题】霍尔计数传感器如图所示,当钢球通过霍尔开关传感器时,传感器可输出毫伏脉冲电压,该电压经( )放大后,驱动三极管工作,三极管输出端接( )进行计数。
【简答题】It was a cold night. The taxi driver didn’t take even one passenger（乘客） all day. When he went by the railway station，he saw a young man coming out with two bags in his hands. So he drove to him and as...
【单选题】以下有有关路由表的说法中，错误的是_______。
A.
路由表可以分为静态路由表和动态路由表。
B.
静态路由表由人工方式建立，网络结构变化时，无法自动更新。
C.
动态路由表由系统自动运行动态路由选择协议，可以自动更新结构
D.
静态路由表很少用到，已经被动态路由表取代。
【单选题】You didn’t take his advice. __ his advice, you _____ such a mistake.
A.
Had you taken; wouldn’t have made
B.
If you had taken; wouldn't make
C.
Were you lo take; shouldn’t have made
D.
Have you taken; won' t have made
【单选题】You didn’t take his advice, ______it, you ______such a mistake. A.If you had taken, would make B.Were you to take, shouldn’t have made C.Had you taken, wouldn’t have made D.Have you taken, won’t have ...
A.
B.
C.
D.
D
【简答题】阅读理解。 It was a cold night. The taxi driver didn’t take even one passenger all day. When he went by the railway station , he saw a young man coming out with two bags in his hands. So he drove to him an...
【简答题】层需要对流入的数据包进行拥塞控制。
【简答题】静态路由可以分为 、 和 。
【单选题】三、完形填空 (本题10小题,每小题2分,共20分) 从 A、B、C、D四个选项中选出最佳答案 Many Chinese students find it difficult to learn English ,but not Chinese, because Chinese is their mother language.In fact Chinese is much more difficu...
A.
He
B.
She
C.
Her
D.
His
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