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【单选题】
以下关于 802.11 主动扫描与被动扫描特点的描述中,错误的是A.
无线主机在接入 AP 之前首先要发现可接入的 AP
B.
发现 AP 的方法可以是被动扫描或主动扫描
C.
被动扫描的主机要扫描信道与监听多个 AP 信标帧
D.
主动扫描时由主机向一个AP广播探测帧来实现的
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反馈参考答案：
举一反三
【单选题】When yield curves are steeply upward sloping
A.
long-term interest rates are above short-term interest rates.
B.
short-term interest rates are above long-term interest rates.
C.
short-term interest rates are about the same as long-term interest rates.
D.
medium-term interest rates are above both short-term and long-term interest rates.
【单选题】When yield curves are flat
A.
long-term interest rates are above short-term interest rates.
B.
short-term interest rates are above long-term interest rates.
C.
short-term interest rates are about the same as long-term interest rates.
D.
medium-term interest rates are above both short-term and long-term interest rates.
【简答题】建课方第二章四
【单选题】When yield curves are downward sloping, __________________.
A.
medium-term interest rates are above both short-term and long-term interest rates.
B.
short-term interest rates are above long-term interest rates.
C.
medium-term interest rates are below both short-term and long-term interest rates.
D.
long-term interest rates are above short-term interest rates.
【单选题】When yield curves are downward sloping
A.
long-term interest rates are above short-term interest rates.
B.
short-term interest rates are above long-term interest rates.
C.
short-term interest rates are about the same as long-term interest rates.
D.
medium-term interest rates are above both short-term and long-term interest rates.
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