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【单选题】
中央空调器风机出口风道截面积突然增大，有利于（）A.
增大风量
B.
减小流动阻力
C.
削减高频噪音
D.
削减低频噪音
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举一反三
【简答题】Discuss the common ways to conduct customer satisfaction survey. (at least 3)
【简答题】List some terms of customer satisfaction survey. 2.Discuss the common ways to conduct customer satisfaction survey. 3.英译汉: 1) customer service 2) customer satisfaction survey 3) customer loyalt...
【简答题】There are several ways to conduct a selection interview. Explain and illustrate the basic ways in which you can classify selections interviews.
【单选题】In the time of HINI, scientists ____ their spare time to conduct research on the ways of curing the disease.
A.
attributed
B.
devoted
C.
abandoned
D.
sacrificed
【多选题】Discuss the common ways to conduct customer satisfaction survey.
A.
Face to face
B.
over the phone
C.
email
D.
handwritten forms.
【单选题】假定客户关系为KH(KHH，NAME，ADDR)，其中KHH为客户号，NAME为客户名，ADDR为客户地址。产品关系为CP(CPH，PNAME，GG)，其中CPH为产品号， PNAME为产品名，GG为产品规格。简化的订单关系为DD(KHH，CPH，DJ，SL)，其中 KHH为客户号，CPH为产品号，DJ为单价，SL为数量。要查找某具体客户订购了某种具体产品的数量及单价，将涉及关系( )。
A.
KH
B.
KH、DD
C.
CP、DD
D.
KH、CP、DD
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