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【单选题】
国家一、二等水准测量规范规定,使用数字水准仪进行二等水准测量,往测观测时偶数站的观测顺序是A.
后前前后
B.
前后后前
C.
后后前前
D.
前前后后
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举一反三
【单选题】Unit 03-6.mp3: Why does the man enjoy the flight?
A.
Because food is good
B.
Because service is good
C.
B oth A and B
【单选题】(76-78页Unit 3) Which of the following advantages of the internet is not mentioned in Paragraph 1?
A.
Watching movies.
B.
Buying goods online.
C.
Using online maps
D.
Communicating with friends.
【单选题】2 (76-78页Unit 3) Cars are mentioned in Paragraph 2 to show____
A.
the Internet can provide maps to guide drivers in traffic jams
B.
people can solve air pollution and traffic jams by using the Internet
C.
the Internet, like cars, brings convenience and causes problems at the same time
D.
the negative effects they cause
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