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【简答题】
将400份文件顺序编号，需要（ ）位二进制代码，转换为八进制需要（ ）位，转换为十六制需要（ ）位。
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举一反三
【单选题】My name is Jack Kent Brown. So my surname is _______。
A.
Jack
B.
Brown
C.
Kent
D.
Tom
【单选题】My pen friend's name is Jack Brown. I call him _____. [ ]
A.
Brown
B.
Jack
C.
Mr. Jack
D.
Ms. Brown
【单选题】This is my friend，Jack Brown. His __________ name is Brown.
A.
first
B.
middle
C.
family
【单选题】---Why is Mr Brown mad at Jim? —Because Jim’s exam results are 。
A.
disappointing
B.
wonderful
C.
exciting
D.
Strange
【单选题】Jack Brown is a boy. Jack is his _____________
A.
first name
B.
last name
C.
family name
D.
full name
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