What is true about the teacher mentioned in Paragraph 3
A. He was recovered from paralysis.
B. He realized that he was luckier than others.
C. He thought highly of the rehabilitation place.
D. He had a car accident and almost killed himsel
查看答案
用HPLC法测得某组分的保留时间为1．5min，半峰宽为0．20cm，记录纸速度为2．0cm/min，则柱效为
A. 2492
B. 623
C. 1800
D. 1246
E. 3600
Scientifically unexplained ideas are accepted widely because ______.
A. they have overwhelmed the world through media
B. mass media have in fact functioned as schools
C. scientists do not write papers or books for a limited audience
D. the public are interested in ideas which are not fully tested
We can learn from the text that being a skeptic one may feel ______.
A. unable to play any roles
B. like the lone voice in the wilderness
C. it's easier to influence the public than the publishers
D. they have more responsibilities than the media
髂前上棘与耻骨结节连线的中点是
A. 股动脉穿刺点
B. 股静脉穿刺点
C. 股神经的位置
D. 股淋巴管的位置
E. 腹股沟韧带的位置
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