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问题 单项选择题 A2型题

患儿，男，14岁。患1型糖尿病2年，今日在家中用胰岛素治疗后突然出现昏迷。其昏迷原因最可能是（）

A.酮症酸中毒

B.高渗性昏迷

C.呼吸性酸中毒

D.乳酸性酸中毒

E.低血糖昏迷

答案

参考答案：E

问答题 简答题

根据《广东省工伤保险条例》，广东省行政区域内的哪些用人单位应当缴纳工伤保险费？
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单项选择题

(五)


Space travel is definitely bad for astronauts’ bones, reducing their bone density after only a month of weightlessness, according to French research published on Friday.
Laurence Vico and his fellow workers at St Etienne University called for more research into the effects of microgravity, after their study of 15 astronauts from the Russian MIR station showed bone loss continued throughout space flights.
"Bone loss was especially striking in four astronauts, " the scientists reported in the Lancet Medical Journal.
They measured the Bone Mineral Density(BMD) of bones in the forearm and lower leg of the astronauts who had spent one to six months in space.
The BMD loss was significant in the tibia of the lower leg, a weight-bearing bone, but barely changed in the radius of the forearm. "Our results indicate the need to investigate not only different bones, but also different areas of the same bone since not all sites of the skeleton are similarly affected by space conditions, " they added.
Without gravity the body isn’t bearing any weight so there is no need for calcium which makes bones p, and it becomes empty into the bloodstream.
The research team suggested in future scientists should try to determine if the loss of bone density was only on weight-bearing bones on longer flights, also the possible recovery after returning to Earth.

French scientists did their research on Russian astronauts, because ______.

A．they only cared for the Russian astronauts

B．they were not interested in their own astronauts

C．the Russian government invited them to do their research

D．the Russian astronauts worked in space for a long time
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