【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
【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
D.
给动脉插管和换能器充满肝素后, 要求检查其密闭性
【单选题】They had a wonderful time _______
A.
chating on the Internet
B.
chatting on the Internet
C.
chating in the Internet
D.
chatting in the Internet.
【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。
【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'
【简答题】如图,已知:△CAB∽△DEB,则BD·CA=( )。
【单选题】Interest is often paid .
【多选题】有关颈总动脉插管的操作,叙述正确的是:
A.
找到颈总动脉分离干净后,在其下穿两条丝线,一条结扎近心端,另一条打活结备用。
B.
剪开动脉后流血不止,提起远心端结扎线,血流停止,则表示远心端结扎线未扎紧,重新结扎即可止血。
C.
剪开动脉后出血不止,提起近心端备用结扎线,血流停止,则表示动脉夹未夹紧,重新清理血管周围,重新夹闭动脉即可止血。
E.
在插管时,尽量靠近远心端结扎线一侧剪开动脉,留出足够长的长度,以方便插管。
【单选题】They had a wonderful time ______. [ ]
A.
to chat on the Internet
B.
chatting on the Internet
C.
to chat in the Internet
D.
chatting in the Internet