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【单选题】
对于车轮平衡问题,下面描述正确的一项是( )。
A.
静平衡的车轮一定是动平衡的
B.
静平衡的车轮一定是动不平衡的
C.
动平衡的车轮一定是静平衡的
D.
动平衡的车轮一定是静不平衡的
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【单选题】Which of the following statements is not true for an inquiry?
A.
The sender must be the potential buyer.
B.
It is not a necessary step to conclude a contract.
C.
It is an invitation to offer.
D.
Neither the sender nor the recipient of an inquiry is bound.
【单选题】An inquiry sent to a supplier whom you have not previously dealt with is
A.
general inquiry
B.
first inquiry
C.
specific inquiry
D.
non-firm offer
E.
firm offer
【单选题】Which of the following statements is not true for an inquiry?
A.
Either the sender or the recipient of an inquiry is not bound.
B.
It is an invitation to offer.
C.
It is not a necessary step to conclude a contract.
D.
The sender must be the potential buyer.
【判断题】结点的带权路径长度=该结点的权*从树根到该结点的路径长度
A.
正确
B.
错误
【单选题】因特网是众多计算机网络的互联系统。下列哪个选项是这一系统从地域角度的分类?
A.
局域网和广域网
B.
边缘层和接入层
C.
以太网和内联网
D.
核心层和边缘层
【单选题】以下选项中,( )不是从技术上讲的计算机安全的三大特征:
A.
实体安全
B.
网络安全
C.
系统安全
D.
信息安全
【单选题】Which of the following statements is not true for an inquiry?
A.
It is an invitation to offer.
B.
Neither the sender nor the recipient of an inquiry is bound.
C.
It is not a necessary step to conclude a contract.
D.
The sender must be the potential buyer.
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