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【单选题】
外科手术时防止微生物进入伤口，此方法称为( )A.
stenlization
B.
disinfection
C.
antiseptic technique
D.
antisepsis
E.
infection
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【单选题】How did 'improvisation' come into being?
A.
The blues singers gathered to have contests.
B.
New words were added into old songs.
C.
New styles were played with guitars.
D.
The blues singers created music while playing.
【单选题】"But the blues did occasionally afflict all the adults." Which one is its best paraphrase?
A.
But the blue color did occasionally impress all the adults.
B.
But the blues music did occasionally impress all the adults.
C.
But sadness did occasionally come to all the adults.
D.
But sadness did occasionally make all the adults feel painful.
【单选题】But the blues did occasionally afflict all the adults.
A.
feeling of deep sadness
B.
the color of the sky
C.
sad; depressed
【简答题】Where did the blues first develop?
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