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【单选题】
关于输血前准备错误的是:A.
抽取血标本做血型鉴定
B.
禁止同时采集两位病人的血标本
C.
从血库取血时应认真核对
D.
输血前应检查血的质量
E.
若血的温度太低,可稍加温
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皮皮学刷刷变学霸
举一反三
【单选题】The operation of the letter of credit starts with the ___.
A.
exporter
B.
importer
C.
consumer
D.
policymaker
【单选题】Which of the following statements is correct with regards to the operation of a centrifugal cargo pump?
A.
Oil is discharged from the impeller through the outlet
B.
Gravity causes the oil to flow toward the discharge
C.
The self-priming feature of the centrifugal pump enables it to draw its own suction as it starts
D.
The discharge capacity varies directly with the speed of the impeller
【简答题】We have to admit that the traditional brand has got some (function) benefits.
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