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【多选题】
大使总结出的外交情报人员一般具有什么特征?A.
职务级别较高
B.
频繁出现于多个外交场合
C.
不随意接近人
D.
岁数不小
E.
年纪较轻
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反馈参考答案：
举一反三
【单选题】Despite the failure of his elderly experiments, the scientist continued his efforts in his research.
A.
preserved
B.
adhered
C.
insisted
D.
upheld
【简答题】9-4-3 某 CPU 的主频为 10MHz ,若已知每个机器周期平均包含 4 个时钟周期,该机的平均指令执行速度为 1MIPS ,试求该机的平均指令周期及每个指令周期含几个机器周期?若改用时钟周期为 0.4μs 的 CPU 芯片,则计算机的平均指令执行速度为多少 MIPS ?若要得到平均每秒 80 万次的指令执行速度,则应采用主频为多少的 CPU 芯片?
【单选题】Despite the failure of his early experiments, the scientist continued his efforts in his research.
A.
persevered
B.
adhered
C.
insisted
D.
upheld
【单选题】Despite the failure of his early eperiments, the scientist continued his efforts in his research.
A.
persevered
B.
adhered
C.
upheld
D.
insisted
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