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【单选题】
You are the network administrator of an enterprise with a main site and multiple remote sites. Your networkcarries both VOIP and data traffic. You agree with your service provider to classify VOIP and data trafficaccording to the different service RFCs. How can your data and VOIP traffic be marked？（）A.
data marked with DSCP AF21，VOIP marked with DSCP EF
B.
data marked with DSCP AF51，VOIP marked with DSCP EF
C.
data marked with the DE-bit. VOIP marked with the CLP-bit
D.
data marked with DSCP EF，VOIP marked with DSCP AF31
E.
data marked with IP precedence 5，VOIP marked with DSCP EF
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皮皮学刷刷变学霸
举一反三
【单选题】Systematic risk is defined as:
A.
a risk that specifically affects an asset or small group of assets.
B.
any risk that affects a large number of assets.
C.
any risk that has a huge impact on the return of a security.
D.
the random component of return.
【单选题】Which one of the following measures the amount of systematic risk present in a particular risky asset relative to the systematic risk present in an average risky asset?
A.
beta
B.
reward-to-risk ratio
C.
risk ratio
D.
standard deviation
【简答题】黏土平瓦若穿铁丝钉圆钉,每 100m 2 增加 ( ) 工日,增加镀锌低碳钢丝 (22)( ) ,圆钉 ( ) 。
【单选题】下列化学方程式正确的是（ ）
A.
2Fe+3H 2 SO 4 ═Fe 2 （SO 4 ） 3 +3H 2 ↑
B.
4Fe十3O 2 ═2Fe 2 O 3
C.
Fe+3AgNO 3 =Fe（NO 3 ） 3 +3Ag
D.
Fe 2 O 3 +3CO 高温 . 2Fe十3CO 2
【单选题】The risk that is specific to individual stocks is called______.
A.
systematic risk
B.
unsystematic risk
C.
country risk
D.
market risk
【多选题】以下关于二分检索法的时间复杂度描述,正确的有________
A.
最好情况下只需要1次比较
B.
查找一个数据集合中存在的元素，最坏情况下的时间复杂度是O(log n)
C.
查找一个数据集合中不存在的元素，最坏情况下时间复杂度是O(n)
D.
平时的时间复杂度是O(log n)
【简答题】有粒白细胞包括 、 和 三种。
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