激素的敏感性缺陷
参考答案:
激素的敏感性缺陷主要指受体和(或)受体后缺陷导致激素不能发挥正常作用,即对激素发生抵抗,临床上多表现为功能减退或功能正常,同时血中激素水平增高。
Astute service providers realize that the continued support of legacy X.25 and asynchronous network element using separate operations network is cost(16).For example,the maintenance of multiple networks can require additional staff. Often, this staff must be trained on multiple vendor technologies, sometimes requiring parallel groups specializing in each (17) .Hence, additional maintenance procedures must be maintained and administrative records are (18) .The duplication of transport facilities to carry (19)network traffic is an inefficient use of resources. And not surprisingly, more technologies installed in a central office means the necessity for more physical space, and an increase in power connections and power consumption migration of these (20) network elements to IP-based DCns is alogical strategy.
空白处(18)应选择()
A.declined
B.proliferated
C.destroyed
D.produced