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患者，女，25岁。以"阵发性双手手指指端苍白和发绀2年"入院。患者2年前因受寒出现双手手指指端苍白，继而发紫，逐渐扩展至整个手指，伴有针刺感，发作可持续1个小时以上，寒冷刺激解除后，15～30分钟左右恢复正常。有时候情绪激动也会诱发。该病的临床诊断标准主要包括以下几个方面（）A.
好发于20～40岁性格内向的女性
B.
寒冷或者情绪激动均能诱发
C.
累及双侧，患侧动脉搏动正常
D.
一般无组织坏死表现
E.
病程在两年以上，无其他系统疾病可以解释
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【简答题】朗读第12课,并按规定时间上传。 要求:录音清楚,单词发音正确,语音语调准确。
【简答题】西汉文学家枚乘,淮阴人,在其代表作《七发》中,为 开列了中国最早的一席食疗菜单。
【单选题】What is the killdeer's nest in parking lot an example of?
A.
A primitive type of nest.
B.
An elevated nest.
C.
A typical cup-shaped nest.
D.
A nest of twigs and branches.
【单选题】Men have traveled ever since they first appeared on the earth. In primitive times they did not travel for pleasure but to find new places where their herds could feed, or to escape from hostile neighb...
A.
for joy
B.
from necessity
C.
to broaden the mind
D.
to escape from the wild animals
【单选题】How did the primitive people pass the accumulated knowledge on to the next generation?
A.
They wrote the knowledge down on papers.
B.
They had the happy 'few' enjoy it.
C.
They taught it to those who have good memories.
D.
They had every one of tile tribe share it and orally passed it on.
【简答题】What did the people in primitive tribes do as they grew up?
【简答题】看图，回答问题。 1. Did Mike write an e-mail? ___________________________________________ 2. What did they do? ___________________________________________
【单选题】What did primitive elevators rely on?
A.
manpower
B.
water and stream
C.
electric
D.
nuclear power
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