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【单选题】
数据传输的基本单位是。A.
bit
B.
Byte
C.
数据字
D.
数据块五
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【单选题】B In the 1500s，the camera was invented． However，in the early 1800s people found a way to make the pictures permanent． Even then，photography was a new field． Most families had their pictures taken by p...
A.
In the 1500s．
B.
In the 1600s．
C.
In the 1700s．
D.
In the 1800s．
【简答题】在平键联接中,当强度不够时,可采用两个键,此时两个键应相隔_______布置。
【单选题】_______ the 1500s ____ the first Europeans explored the coast of California.
A.
It was until…then
B.
It was not until…when
C.
It is until…that
D.
It was not until…that
【单选题】During the early 1500s the English were content to stay home for the reasons EXCEPT that _____________.
A.
English had driven away most foreign merchants out of the country
B.
population had grown fast
C.
merchants had become very wealthy
D.
the country had not broken away with the Catholic Church
【单选题】某商场第一季度的销售额比去年同期销售额增长了4％，该商场的综合价格指数比去年上涨了5％，则该商场销售量增长了( )。
A.
2％
B.
-0．95％
C.
0．96％
D.
-0．96％
【简答题】在平键联接中,当强度不够时,可采用两个键,此时两个键应相隔___ 布置;而在切向键联接中,两对切向键应相隔___ 。
【单选题】某商场第一季度的销售额比去年同期销售额增长4%，该商场的综合价格指数比去年上涨了5%，则该商场销售量增长了（ ）
A.
2%
B.
-0.95%
C.
0.96%
D.
-0.96%
【单选题】It () the 1500s () the first European explored the coast of California.
A.
was not until / that
B.
is not until / that
C.
is not until / when
D.
was until / that
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