问题
单项选择题
航海上1海里的标准是()。
A.地理纬度1′的子午弧长度
B.1852m
C.海图上1′经度的长度
D.地球球心角1′所对应的子午线弧长
答案
参考答案:B
航海上1海里的标准是()。
A.地理纬度1′的子午弧长度
B.1852m
C.海图上1′经度的长度
D.地球球心角1′所对应的子午线弧长
参考答案:B
补全短文。根据短文内容,从短文后的A-F选项中选出适当的选项补全对话。(共5小题,每小题1分;计5分) I had a summer camp with my classmates last year. Early in the morning, we gathered(集合) at the bus station. 小题1: It took us more than two hours to arrive at the campground. We got off the buses happily. Laughing and shouting, we jumped and ran all over the place. ___ 小题2: Some of us started to feel homesick(想家). However, when the night party and dances began, the homesickness was gone. 小题3: At first, my friends and I worked hard, but the boat wouldn’t listen to us and kept going round and round. Then the teacher taught us how to work together. After many tries, we did much better. Swimming class was my favorite. It was about the hottest time of a day and the best time to stay in the cool water. 小题4: During the week I learned a lot of new things and made many new friends. 小题5:
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