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【简答题】
电力系统进行无功补偿起到的作用之一是()。 A、提高设备安全性 B、提高设备可靠性 C、提高设备利用效率
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举一反三
【简答题】QS2-7 yzing debit or credit by account Required: Write "D" for debit or "C" for credit in an order as from "a" through "j".
【多选题】颈动脉插管操作中,下列正确的有
A.
颈总动脉下穿双线,第一根线尽量靠头端结扎,另外一根线放在动脉夹和第一根线之间
B.
动脉夹夹闭颈总动脉近心端
C.
剪 V形切口时靠近血管头端
D.
给动脉插管充满肝素后,要求检查其密闭性
E.
给换能器充满肝素后,不要求检查其密闭性
【单选题】Analyzing the current state of the online advertising in paragraph 4, the author implies that _____.
A.
it has to be modified over time to remain effective.
B.
for all its current profits, it will fade in the long run.
C.
banners are beginning to lose their advertising efficiency.
D.
Internet advertising methods will continue to decrease sales.
【简答题】现代企业都开始借助互联网进行各种以市场调研为目的的活动,收集()、了解竞争者的情报及调查()等。
【多选题】颈动脉插管时,正确的操作有
A.
排空颈动脉套管内气泡
B.
靠动脉头端结扎颈总动脉
C.
用动脉夹靠心脏端夹闭颈总动脉
D.
用眼科剪在动脉向心方向将一V形切口
E.
将动脉插管向心脏方向插入颈总动脉，并将套管和动脉一起扎紧，防止滑脱。
【单选题】It seems that some young scientists ______.
A.
have a keen interest in prediction
B.
often speculate on the future
C.
think highly of creative thinking
D.
stick to 'scientific method'
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