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【判断题】
在中脑上,下丘之间横断脑干后,动物出现四肢伸直,头尾昂起,脊柱挺硬,这一现象称为去大脑僵直。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】People in the 1th and 1th centuries slept about . hours a night because ______.
A.
they were forced by their parents to do so
B.
they knew what was best for their health
C.
they had to do so because of their life style. and the lack of electricity
D.
they were not so dynamic and ambitious as modem people are
【简答题】完成课堂安排的任务1-任务3
【单选题】The values of today's young people differ from ________.
A.
those of their parents
B.
that of their parents
C.
their parents
D.
whose parents
【单选题】流行病学科的三大要素是指:
A.
描述分布、提出假设、验证假设
B.
原理、方法、应用
C.
揭示现象、找出原因、提供措施
D.
描述、分析、验证
E.
疾病、伤害、健康
【简答题】Sometimes it is difficult to compare money values in different periods of history because______.
【单选题】Both approaches require that the actor ______ his or her own personal values as well as the character's.
A.
must understand
B.
should understand
C.
has to understand
D.
need to understand
【单选题】People in the 18th and 19th centuries used to sleep about 9.5 hours a night because they had ______.
A.
no drive or ambition
B.
no electric light
C.
the best sleep habits
D.
nothing to do in the evening
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