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单项选择题

差动放大电路一般位于多级放大电路的后面几级。
A、正确
B、错误

问答题

无论工作生活中，我们需要容忍很多，对他人宽容，有耐心。写一篇以耐心为话题的作文。 要求:1.词数: 80-100词(开头已给出，不计入总词数) 2.字迹工整，语言流畅，表达正确，逻辑清晰。 答案： To be patient When someone disagrees with you or offends you, don't lose your patient, Why? Because it is of no use to do so. You ought to (should) be patient and keep calm lest you should quarrel with him. You must know that patience is not cowardice, but a virtue. 1 hope that everybody practices it. In addition, patience will also bring us success. When you meet with difficulties in your work, it is no use losing heart. You must keep on fighting until ill the final victory belongs to you.