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【单选题】
判断一种疾病示范属于地方性疾病的依据不包括:A.
该地区的各类居民中,任何民族的发病率均高;其他地区同类居民中发病率低,甚至不发病
B.
迁入该地区的人时间后,其发病率和当地居民一致
C.
人群迁出该地区后,发病率下降或病情减轻或自愈
D.
有当地户口的人才发病
E.
当地的易感动物也可发生同样的疾病
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【单选题】It is hoped that an end can _______ to pollution of any kind and we humans can live ______ with nature.
A.
be put; in harmony
B.
be adjusted; in terms with
C.
be adopted; in condition
D.
resigned; in agreement
【单选题】In what ways can animals help humans, according to the lecturer?
A.
Animals can communicate with humans.
B.
They can carry heavy loads long distances.
C.
They know how to plant food crops and can teach humans how to do it.
D.
They can harvest food crops without human involvement.
【单选题】The passage indicates that
A.
humans can never regenerate limbs．
B.
humans might be able to regenerate limbsin the future．
C.
human limbs may be regenerated on someanimals first．
D.
regeneration of human limbs will SOON become a reality．
【单选题】How has the knowledge of echolocation been used by humans?
A.
Humans can now talk to dolphins.
B.
It is the basis of sonar technology.
C.
The fishing industry can avoid dolphins.
D.
Blind people use echolocation to navigat
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