【单选题】【消耗次数：1】
Mary Kingsley believed that Africans could learn technology____________ and would finally move into the modern world.
①
gladly
②
carefully
③
possibly
④
gradually
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答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”She believed that Africans could learn technology gradual and would final move into the modern world.
①
正确
②
错误
【单选题】
How difficult it is ______ the modern world without oil.
①
imagining
②
imagined
③
to imagine
④
having imagined
【单选题】
33.Modern science and technology has _____ communication between people far apart.
①
madeconvenient
②
madeitconvenient
③
madeitconvenientfor
④
madeitconvenientto
【单选题】
Mary Kingsley____________ twenty months between 1893 and 1895 exploring West Africa.
①
spend
②
spends
③
spended
④
spent
【单选题】
Decades ago there was a time ______ people believed that the natural sources would never be used up.
①
which
②
when
③
with which
④
whenever
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4.After a delay of two hours, it was finally announced that the passengers could now _______ the plane.
①
get for
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get up
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go to
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board
【单选题】
The advancement of technology has boosted the pace of our lives, and requires us to learn ___________ every day just to stay current in the workplace.
①
something new
②
new something
③
everything
④
anything
【单选题】
No one would have time to read or listen to an account of everything ____going on in the world.
①
it is
②
as is
③
there is
④
what is
【单选题】
—The advancement of technology has boosted the pace of our lives, and requires us to learn something new every day.— I have chosen the online program at OU.
①
Because
②
Now that
③
That is the reason why
④
For
【单选题】
——Mary, what would you say to a holiday for the weekend?
——____. I am simply tired of life here.
①
You’retakenthewordsoutofmymouth
②
Enjoyyourself
③
Ican’taffordthetime
④
Whereshouldwego?
随机题目
【单选题】
学生表(id，name，sex，age，depart_id，depart_name)，存在的函数依赖是id→{name，sex，age，depart_id};dept_id→dept_name，其满足（ ）。
①
A.1NF
②
B.2NF
③
C.3NF
④
D.BCNF
【单选题】
已知关系模式R(A，B，C，D，E)及其上的函数依赖集合F＝{A→D，B→C，E→A}，该关系模式的候选码是（ ）。
①
A.AB
②
B.BE
③
C.CD
④
D.DE
【单选题】
对于实体集A中的每一个实体，实体集B中至少有一个实体与之联系，反之亦然，则称实体集A与实体集B之间具有的联系是（ ）。
①
A.多对一
②
B.一对多
③
C.多对多
④
D.一对一
【单选题】
关系数据库的规范化理论主要解决的问题是（ ）。
①
A.如何控制不同用户的数据操作权限
②
B.如何构造合适的应用程序界面
③
C.如何构造合适的数据物理结构
④
D.如何构造合适的数据逻辑结构