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【多选题】
由于垄断而形成的国际贸易中的不等价交换，在其历史发展过程中经历的三个时期包括()。A.
资本主义生产方式准备时期的不等价交换
B.
资本主义自由竞争时期的不等价交换
C.
帝国主义时期的不等价交换
D.
社会主义时期的不等价交换
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皮皮学刷刷变学霸
举一反三
【单选题】Which statement best describes the code used for GMDSS DSC transmissions?
A.
A 10 bit error correcting code starting with bits of data followed by a 3 bit error correcting code.
B.
)A 10 bit error correcting code starting with a 3 bit error correcting code followed byV/.bits of data.
C.
An 8 bit code with 7 bits of data followed by a single parity bit.
D.
A 7 bit code that is transmitted twice for error correction.
【单选题】“Code Blue” is generally used to :
A.
indicate a patient requiring resuscitation
B.
indicate a patient leaving the hospital
C.
indicate a patient talking with the doctor
【简答题】Code 7600 is used after the failure of .
【简答题】常用硬度试验法有()氏、()氏、()氏等方法。
【简答题】什么是切花?它与插花有什么区别?
【单选题】How did Braille make use of raised dots in his code?
A.
He used them for the 26 letters of the alphabet.
B.
He used them for pictures.
C.
He used them for punctuation marks and short words.
D.
Both A and C
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