Why does the author mention the Giotto probe in paragraph 3?
A.It had a relatively small and inconspicuous nucleus.
B.It was very similar to an asteroid.
C.It was covered with an unusual black dust.
D.It provided visual evidence of the makeup of a comet's nucleus.
第1题
发生急性左心衰竭时,病人应采取的体位是
A.平卧位
B.头高脚低位
C.头低脚高位
D.侧卧位
E.坐位,两腿下垂
第2题
发生急性左心衰竭时,病人应采取的体位是
A.头高脚低位
B.平卧位
C.侧卧位
D.头低脚高位
E.坐位,两腿下垂
第6题
抢救急性左心衰竭患者时应让患者采取何种体位
A.半卧位
B.头低脚高位
C.坐位,双下肢下垂
D.左侧卧位
E.右侧卧位
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