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【单选题】
关于脐带，哪错误的A.
妊娠足月(40周末)脐带长度一般为50cm
B.
脐带有两根脐动脉和一根脐静脉
C.
脐带表面由羊膜包围
D.
脐静脉的氧分压低于脐动脉
E.
脐带杂音的速率与胎心音率相同
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【简答题】It has been proved that the upper atmosphere above certain distance continually grew thinner and colder ______．
【单选题】When inspecting a tank barge to see that it has all the required fire extinguishers and other safety items aboard，which of the following is the best source for determining what is required? （）
A.
The supervisor in charge of the dock to which the barge is tied up
B.
Part 38 of the Rules and Regulations for Tank Vessels
C.
The Certificate of Inspection of the barge
D.
The local fire marshal
【单选题】It has been proved ( )
A.
what the brains of men and women are not entirely the same.
B.
what that the brains of men and women are not entirely the same.
C.
that the brains of men and women are not entirely the same.
D.
the brains of men and women are not entirely the same.
【单选题】The sum of all of the debit items in the balance of payments ( ).
A.
Equals the overall balance
B.
Equals the sum of all credit items
C.
Equals “compensating” transactions
D.
Equals the sum of credit items minus errors and omissions
【判断题】All required items on the cards should be filled in with neat and clear letters. The cards filled with pencil are invalid.
A.
正确
B.
错误
【单选题】The sum of all of the debit items in the balance of payments ( ) :
A.
Equals the overall balance.
B.
Equals the sum of all credit items.
C.
Equals the compensating transactions .
D.
Equals the sum of credit items minus errors and omissions.
【简答题】对混凝土拌和物流动性大小起决定性作用的是拌和用水量的多少。
【单选题】The sum of all of the debit items in the balance of payments:
A.
equals the overall balance.
B.
equals the sum of all credit items.
C.
equals ‘compensating’ transactions.
D.
equals the errors and omissions.
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