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问题 单项选择题

批准文号为同药准字J加8位数字表示 ( )

A．化学药品
B．中药
C．通过国家药品监督管理局整顿的保健药品
D．生物制品
E．进口分包装药品

答案

参考答案：E

解析：[知识点] 中药说明书

填空题
若复数z=
2
+
6
i，则arg
1
z
等于______．
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单项选择题

Routing protocols use different techniques for assigning (37) to individual networks. Further, each routing protocol forms a metric aggregation in a different way. Most routing protocols can use multiple paths if the paths have an equal (38) Some routing protocols can even use multiple paths when paths have an unequal cost. In either case, load (39) can improve overall allocation of network bandwidth. When multiple paths are used, there are several ways to distribute the packets. The two most common mechanisms are per-packet load balancing and per-destination load balancing. Per-packet load balancing distributes the (40) across the possible routes in a manner proportional to the route metrics. Per-destination load balancing distributes packets across the possible routes based on (41)

39（）

A.bracketing 

B.balancing 

C.downloading 

D.transmitting
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