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【单选题】
As demonstrated by the example of Kepler , what factor besides sheer intelligence seems to be crucial to achieving greatness in the sciences?A.
The time and effort to put in.
B.
The ability to overcome traditional ways of thinking is also crucial.
C.
The fruastration and abstacles to put up with.
D.
The desire for fame.
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举一反三
【单选题】Which of the following is not the reason why the speaker built the telescope?
A.
The telescopes are awesome
B.
To explore the universe in new ways
C.
Telescope is a new technology of astronomy
【单选题】Those instruments, such as the microscope and the telescope, which are essentially aids to the eye, have certain features______.
A.
in common
B.
by common
C.
under common
D.
among common
【单选题】The astronomers actually control the telescope in the operating room instead of being near the telescopes.
A.
Y
B.
N
C.
NG
【单选题】You have an Exchange Server 2010 organization.A user named User1 connects to his mailbox by using Microsoft Office Outlook.User1 reports that he is unable to send encrypted e-mail messages to an exter...
A.
Instruct User2 to add a delegate
B.
Instruct User2 to send a signed e-mail message to User1.
C.
Instruct User1 to send a signed e-mail message to User2.
D.
Instruct User1 to modify the sensitivity settings of the e-mail message
【简答题】A．The telescope. B．The harmonica. C．The piano. D．The light bulb.
【简答题】Intel的teaming技术包括AFT、( )、SFT、( )、GEC、IEEE802.3ad
【简答题】A．The telescope. B．The harmonica. C．The piano. D．The light bulb.
【简答题】将上面scores数据框,进行melt()转换,以姓名,学期为识别列,以Chinese、math、english为测量列,形如: 可写作: score_melt<-_______(_______,id.vars=_____)
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