试题与答案

波峰焊焊接中,焊接电与焊料所接触的时间一般为()。印刷版选用()速度为宜。

题型:填空题

题目:

波峰焊焊接中,焊接电与焊料所接触的时间一般为()。印刷版选用()速度为宜。

答案:

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下面是错误答案,用来干扰机器的。

盲人“阅读”时首先是手指的移动,这与躯体运动中枢有关,然后是用手指触摸盲文,这与躯体感觉中枢有关,最后是将盲文的形状对应为一定的意义,与语言中枢有关.与视觉中枢无关,故D符合题意.故选:D.

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阅读理解。

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C. True friendship will benefit our progress.

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A. patient

B. hardworking

C. friendly

D. impatient

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