试题与答案

洛阳(35°N,112°E)一学生对太阳能热水器进行了改造,把热水器装在一个大玻璃箱

题型:单项选择题

题目:

洛阳(35°N,112°E)一学生对太阳能热水器进行了改造,把热水器装在一个大玻璃箱中,并将支架改造成活动方式.9月23日,为使热水器有最好效果,调节支架使热水器吸热面与地面的夹角为()

 

A.23°26〃

B.35°

C.55°

D.66°34〃

答案:

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