皮皮学，免费搜题
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【单选题】
伙伴型客户关系的特点是:A.
销售人员把产品销售出去,统一或鼓励客户在遇到问题或有意见时联系企业
B.
销售人员把产品销售出去就不再与客户解除
C.
能不断地协同和帮助客户解决问,支持客户的体衣,实现共同发展
D.
销售完成后,企业不断联系客户提供有关改进产品的建议和新产品的信息
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】AS DATA TRAVELS ON THE MEDIA IN A STREAM OF 1S AND 0S HOW DOES A RECEIVING NODE IDENTIFY THE BEGINNING AND END OF A FRAME?
A.
The receiving node identifies the beginning of a frame by seeing a physical address.
B.
The transmitting node sends a beacon to notify that a data frame is attached.
C.
The transmitting node sends an out-of-band signal to the receiver about the beginning of the frame.
D.
The transmitting node inserts start and stop bits into the frame.
【多选题】企业存在未达账项的情况有
A.
企业已收款入账,而银行尚未收款入账
B.
企业已付款入账,而银行尚未付款入账
C.
银行已收款入账,而企业尚未收款入账
D.
银行已付款入账,而企业尚未付款入账
【单选题】Just as sound travels through the air in waves, electricity travels through the air in ______ radio waves.
A.
what is called
B.
which is called
C.
what it is called
D.
which it is called
【简答题】企业存在未达账项的情况有
【多选题】企业存在未达账项的情况有
A.
业已收款入账，而银行尚未收款入账
B.
业已付款入账，而银行尚未付款入账
C.
行已收款入账，而企业尚未收款入账
D.
行已付款入账，而企业尚未付款入账
【单选题】The data travels from the ______ to the INMARSAT Network Coordination Station（NCS）and then down to the SES's on ships at sea．
A.
VHF
B.
SART
C.
NAVTEX
D.
LES
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