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【单选题】
太平洋丝绸之路运送的主要货物是A.
陶瓷
B.
生丝、丝织品
C.
棉布
D.
亚麻
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举一反三
【单选题】It is suggested in Paragraph 4 that______.
A.
loss of memory can be attributed to stress
B.
post-traumatic stress is a kind of brain disorder
C.
severe stress may hinder memory forming
D.
chronic distress has not been correctly dealt with
【单选题】High levels of stress or _________ stress can lead to heart attacks, stroke, high blood pressure, heart disease, and many other detrimental health conditions.
A.
chronic
B.
peristaltic
C.
clavicular
D.
conflicting
【简答题】孔的公差带在轴的公差带之上为（）配合；孔的公差带与轴的公差带相互交迭为过渡配合；孔的公差带在轴的公差带之下为过盈配合。
【单选题】In the sentence “Consumers bother less with pocket change and are able to use plastic even at tradition- ally cash - only vendors.” ( paragraph 3 ), the word “plastic” has the meaning of _____.
A.
credit card
B.
plastic bill
C.
money
D.
check
【单选题】The research conducted by Porter and Landfield showed that ______.
A.
the levels of adrenal hormones have nothing to do with brain aging
B.
changes in the levels of adrenal hormones can affect brain aging
C.
chronic stress may strengthen one's memory
D.
the rate of brain aging always remains stable
【单选题】______ (长期的) stress has even more ways that can sabotage your health.
A.
Christian
B.
chronological
C.
Chronic
D.
synchronical
【单选题】Chronic ______ stress, such as depression and anxiety, can bring about the negative influence on immune and nervous system.
A.
medical
B.
physical
C.
psychological
D.
periodical
【单选题】The research’ conducted by Porter and Land field shows that
A.
the levels of adrenal hormones have nothing to do with brain aging。
B.
changes in the levels of adrenal hormones can affect brain aging．
C.
chronic stress may strengthen one’s memory．
D.
the rate of brain aging always remains stable．
【单选题】____ stress can increase the risk of diseases such as depression, heart disease and even cancer.
A.
arrogant
B.
deficient
C.
chronic
D.
inborn
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