首页
登录
职称英语
[originaltext] As is known to all, scientists and philosophers had studied t
[originaltext] As is known to all, scientists and philosophers had studied t
游客
2023-09-14
52
管理
问题
As is known to all, scientists and philosophers had studied the human body and its functions from very early times. Unfortunately, many of the ideas and theories, correct and incorrect, were accepted without question for a great number of years. But by the 16th century, knowledge gained through chemical experiments was beginning to make some people think more deeply about how the human body works.
A most important medical discovery was made by William Harvey in 1628. He found out that the blood is circulated round the body in one direction only by the pumping action of the heart. It had previously been incorrectly thought that the blood moved with a backward and forward motion.
Early in the 17th century a new instrument came into use that was to open up a whole new area in the study of medical and scientific matters. This was the microscope.
The first instruments were not very efficient. They were able to magnify only a very small part of the object and this was always surrounded by rings of coloured light. Nevertheless a great step forward had been taken which was of vital importance for future research and development.
选项
A、The heart pumps blood in two directions.
B、Time blood is circulated round the body in one direction only by the pumping action of the heart.
C、The blood moved with a backward and forward motion.
D、The heart pumps blood in all directions.
答案
B
解析
文中可以听到:He found out that the blood is circulated round the body in one direction only by the pumping action of the heart.由此可选定B。
转载请注明原文地址:https://tihaiku.com/zcyy/3013858.html
相关试题推荐
[originaltext]Darwinwasagreatscientist.Hestudiedlivingthingsinthe
[originaltext]Darwinwasagreatscientist.Hestudiedlivingthingsinthe
[originaltext]W:Look,I’msorry,butthebooksforChem.100aren’tinyet.M:
[originaltext]W:Look,I’msorry,butthebooksforChem.100aren’tinyet.M:
[originaltext]W:Look,I’msorry,butthebooksforChem.100aren’tinyet.M:
[originaltext]Doyouknowthatvegetablescanbegrowninclimatetheyare
[originaltext]Doyouknowthatvegetablescanbegrowninclimatetheyare
[originaltext]Everycountrytendstoacceptitsownwayoflifeasbeingth
[originaltext]M:Wereacheddirectlyouttobothschooladministratorstofind
[originaltext]W:Hi,Jack.M:Ah,Mary.Howareyou?W:Oh,fine.How’sitgoin
随机试题
WritingExperimentalReportsI.Contentofanexperimental
Thesmallcompanyisn’t_______ofhandlinganorderthatlarge.A、ableB、capable
AreWeinanInnovationLull?[A]Scanthehighlightsof
Theyear2005isthemidpointofadecadethatspansthreeunique,important
我国现行的《会计法》自()起施行。A.2000年7月1日 B.1999年10月
《个人信用信息基础数据库管理暂行办法》是根据《中华人民共和国中国人民银行法》等有
麝香与牛黄的相同功效是A.活血通经 B.凉肝息风 C.开窍醒神 D.清热解
简述现代企业人力资源管理各个历史发展阶段的特点。
当债务人不能清偿到期债务时,()可以向法院申请破产重整。A:债权人B:债务人
通常引起经济周期性波动的主要因素是( )。A.总供给的变动 B.总就业的变动
最新回复
(
0
)