问题
单项选择题
水文四等水准测量在每仪器站要求同一双面水准尺黑、红面读数差不大于（）。
A、5mm
B、3mm
C、2mm
D、1cm
答案
参考答案：B
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水文四等水准测量在每仪器站要求同一双面水准尺黑、红面读数差不大于（）。
A、5mm
B、3mm
C、2mm
D、1cm
参考答案：B
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| It is interesting to visit another country. But sometimes there are problems when we don't know the 1 very well. It may be 2 to talk with the people there.We may not know how to use the telephone i n the country we are 3 . We may not know how to buy the things we 4 . In a strange country we might even not know where to eat or what to order in a 5 . It's not easy to decide 6 money you should give to the waiters and the taxi drivers as a tip(小费). When we need 7 ,we might not know who to ask for help. It is not pleasant to have an 8 like that. Maybe we can 9 what to do and what to say in a short time. But when we start to enjoy the life in another country, we have to 10 . And when we get back home,we will be sorry for the visit. | ||||
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