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【单选题】
下列关于心脏功能的描述,正确的是A.
心力衰竭的患者，心肌收缩力减弱，搏出量减少
B.
健康成年人能使心输出量随心率加快而增多的最高心率为每分钟200～240次
C.
心力衰竭的患者心力储备明显高于正常人
D.
运动员在状态下的心率常高于一般正常人
E.
运动员通常具有较大的收缩期储备，但心率储备较小
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【单选题】The eight airlines of the One world alliance (联盟) have joined forces to give world travelers a simple way to plan and book a round-the-world journey. It's called the Oneworld Explorer program. Oneworl...
A.
a travel agency
B.
a union of airlines
C.
a series of tourists attractions
D.
the title of a flight program
【单选题】The of having one’s marriage arranged by parents has disappeared in many parts of the world but continues in some Asian and African countries.
A.
content
B.
custom
C.
current
D.
context
【简答题】The scientific world continues to be amazed by the speed of the development of cloning. Some scientists now suggest that the cloning of humans could occur in the near future. Despite the benefits of c...
【简答题】The eight airlines of the Oneworld alliance (联盟) have joined forces to give world travelers a way to plan and book a round-the-world journey. It's called the Oneworld Explorer program. Oneworld...
【简答题】翻译: South Asia continues to be the most dynamic economic region in the world.
【单选题】If the current______ continues, our country may turn out to be the world s largest economy by 2020.
A.
recovery
B.
event
C.
potential
D.
trend
【简答题】The 1 in Chinese main stock market continues to 2_ investors around the world.
【判断题】The world continues to become more globalized, American countries are increasingly investing dollars abroad, and companies from countries around the world continue to invest in the international marke...
A.
正确
B.
错误
【单选题】In the sentence "The virus continues to wreak havoc around the world.", the word "wreak" means ______.
A.
cause
B.
damage
C.
increase
D.
worsen
【单选题】South Asia continues to be the most ______ economic region in the world.
A.
dynamic
B.
fictional
C.
vivid
D.
illuminating
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