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【简答题】
请把二进制数1011 0001‬分别转化成10进制数和16进制数?
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【单选题】听力原文: Cambridge is about 86 kilometres northeast of London. It is one of the most beautiful places in Britain. Everything about the city of Cambridge reminds you of its famous university: student on b...
A.
Watching traditional plays.
B.
Visiting the magnificent libraries.
C.
Boating on the river.
D.
Cycling in narrow streets.
【单选题】听力原文: 'Where is the university?' is a question many visitors to Cambridge ask, but no one now could point them in any one direction because there is no campus. The university consists of thirty-one se...
A.
Because there are no signs to direct them.
B.
Because no tour guides are available.
C.
Because all the buildings in the city look alike.
D.
Because the university is everywhere in the city.
【单选题】如果要搜集某一特定群体的有关资料,适宜采用的方法是?
A.
整群抽样
B.
滚雪球抽样
C.
系统抽样
D.
判断抽样
【单选题】被子植物中输送水分的主要输导组织为
A.
管胞
B.
导管
C.
筛管
D.
半胞
E.
筛胞
【单选题】听力原文: 'Where is the university? is question many visitors to Cambridge ask, but no one could point them in any one direction because there is no campus. The university consists of thirty-one self-gove...
A.
Because there are no signs to direct them.
B.
Because no tour guides are available.
C.
Because all the buildings in the city look alike.
D.
Because the university is everywhere in the city.
【单选题】听力原文: 'Where is the university?' is a question many visitors to Cambridge ask, but no one can give them a clear answer for there is no wall to be found around the university. The university is the cit...
A.
To see Cambridge University.
B.
To study in the colleges in Cambridge.
C.
To use the libraries of the university.
D.
To visit the professors there.
【单选题】如果要搜集某一特定群体的有关资料,适宜采用的调查方式是( )
A.
分层抽样
B.
整群抽样
C.
方便抽样
D.
滚雪球抽样
【单选题】如果要搜集某一特定群体的有关资料,适宜采用的调查方式是
A.
系统抽样
B.
整群抽样
C.
滚雪球抽样
D.
判断抽样
【单选题】如果要搜集某一特定群体的有关资料,适宜采用的调查方法是
A.
系统抽样
B.
整群抽样
C.
滚雪球抽样
D.
判断抽样
【单选题】听力原文: 'Where is the university?' is a question many visitors to Cambridge ask, but no one could point them in any one direction because there is no campus. The university consists of thirty - one self...
A.
Because there are no signs to direct them.
B.
Because no tour guides are available.
C.
Because all the buildings in the city look alike.
D.
Because the university is everywhere in the city.
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