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It’s a shame that I have learned French for 10 years and yet I am unable to ________ more than a few sentences.
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逐次逼近A/D转换的速度比积分式A/D转换的速度________
某双斜积分式DVM，基准电压为 Ur=6.000V，计数脉冲频率为 fc=1MHz，计数器满量程为 N1=80000，求（1）被测电压为 Ux=1.500V 时，计数器计数值 N2 为多少？（2）采样时间 T1 和反向积分时间 T2 分别为多少ms？
As the world's only truly universal global organization, the United Nations (UN) has become the foremost forum to address issues that transcend national boundaries and cannot be resolved by any one country acting alone.
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