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【题目】朝鲜最高人民会议常任委员会颁布政令,决定自2015815日起调整标准时,使用平壤时间,即以127°30′E为基准设定的朝鲜标准时间。朝鲜此前与韩国和日本一样,采用东九区区时作为标准时间。据此完成下列各题。

1

A. 不变 B. 调慢半小时 C. 拨快半小时 D. 拨快1小时

2

A. 不变 B. 减少半小时 C. 增加半小时 D. 增加1小时

3

A. 朝鲜此日昼短夜长

B. 此时地球公转速度较快

C. 此日直射点位于北半球且正向北移动

D. 此时南极附近出现极夜现象

【答案】

1B

2A

3D

【解析】试题分析:

1】根据材料,朝鲜以前采用东九区区时作为标准时间,即135°E的地方时为标准时间。2015815日,以127°30′E为基准设定的朝鲜标准时间。两地经度相差7.5°,东边的时间早,朝鲜人的钟表时间将调慢半小时,B对。ACD错。

2】北京到平壤两地距离不变,飞机速度不变,两地间的航班飞行时间不变,A对。BCD错。

3】调整期间日期是815日,太阳直射点在北半球,正向南移动,C错。朝鲜此日昼长夜短,A错。此时地球公转速度较慢,正变快,B错。 此时南极附近出现极夜现象,D对。

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