皮皮学，免费搜题
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【单选题】
图示音程的性质?A.
纯八度
B.
减八度
C.
增八度
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】The Space Age ________ in October 1957 when the first artificial satellite was launched by the Soviet Union. A) initiated B) originated C) embarked D) commenced
【简答题】请在打开的窗口中,进行下列操作,完成所有操作后,请关闭窗口。(将答案以截图附件形式上传)
【单选题】_______time goes by, compu ters are made smaller and smaller and nobody knows for sure how small _______ be made but there must be a limit. [ ]
A.
With; they can
B.
As; they can
C.
When; they can
D.
While; can they
【简答题】请在打开的窗口中,进行下列操作,完成所有操作后,请关闭窗口。(请将答案以截图或者附件形式上传)
【单选题】Which is NOT included in the personal laundry service for the guests:
A.
Replacement
B.
Laundry
C.
Pressing and ironing
D.
Shoe shining
【单选题】A program to mature the technologies needed to achieve an economically______ reusable launch vehicle is underway in the U. S.
A.
selective
B.
sound
C.
super
D.
scientific
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