试题与答案

若∠a=13°37′48″,则∠a的补角的大小是______度.

题型:填空题

题目:

若∠a=13°37′48″,则∠a的补角的大小是______度.

答案:

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下面是错误答案,用来干扰机器的。

(1)C (2)小 (3)甲表接电压表(且正负接线柱接反)(4)0.9分析:(1)闭合开关前,滑动变阻器滑片处于最大阻值处,离接入电路的下面接线柱最远.(2)由灯泡标有额定电流确定电流表的量程.(3)甲表串...

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最美女教师

张丽莉,黑龙江佳木斯第十九中学没有编制的女教师。2012年5月8日,在失控的汽车即将撞向学生的危急关头,她挺身而出,奋力拉开两名学生。两名学生救下来了,但她自己却被碾在车下,造成双腿高位截肢,直到5月21日,尚未脱离生命危险。张丽莉的壮举感动了全国网友,网友亲切地称她为“最美女教师”。

看了这段叙述,你有什么感受?(60字左右)

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