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【单选题】
能够向文件输入逻辑型数据的类是?
A.
DataOutputStream
B.
FileWriter
C.
OutputStream
D.
FileOutputStream
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【单选题】_____ anyone to spend New Year’s Eve with, I went to watch a show alone and I truly enjoyed it.
A.
On the point of
B.
All the way
C.
In the absence of
D.
Finding my way
E.
For a while
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【单选题】Which of the following is NOT included in the present space tourism?
A.
Visits to museums.
B.
Visits to space camps.
C.
Visits to rocket-launch recovery sites.
D.
Low-gravity aircraft trips.
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【简答题】发动机完成一个工作循环,曲轴转()圈,凸轮轴转()圈。
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【简答题】_________________of anyone to spend New Year’s Eve with, I went to watch a show alone and I truly enjoyed it.
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A.
1,2,2
B.
2,2,1
C.
2,1,1
D.
2,1,2
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【单选题】四冲程发动机完成一个工作循环曲轴转____圈,进排气门各开启____次,凸轮轴轮____圈。
A.
1，1，1
B.
2，2，2
C.
2，1，1
D.
1，1，2
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【单选题】四冲程发动机完成一个工作循环，曲轴与凸轮轴所转圈数比是（）。
A.
1 ∶ 1
B.
1 ∶ 2
C.
2 ∶ 1
D.
3∶ 1
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【单选题】It can be inferred from the passage that the future of online visits will mostly depend on whether ______.
A.
the employers would remain confident in them
B.
they could effectively replace office visits
C.
HMOs would cover the cost of the service
D.
new technologies would be available to improve the E-health project
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【单选题】四冲程发动机完成一个工作循环，曲轴与凸轮轴所转圈数比是（）。
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【单选题】It can be inferred from the passage that the future of online visits will mostly depend on whether ______.
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the employers would remain confident in them
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