The author hopes that studies on the influence of geographical environment will enable us
A.generalize better about types of people
B.find better water supplies
C.gain an insight into its influence on mankind
D.live to a ripe old age
A.generalize better about types of people
B.find better water supplies
C.gain an insight into its influence on mankind
D.live to a ripe old age
第1题
A.经呼吸道飞沫传播AYTLFN
B.经消化道传播AYTLFNBLOS
C.经粪-口途径传播AYTLFNB
D.接触传播EOHGLLIXSFTYLH
E.虫媒传播EOHGLLIXSFTYLH
第2题
艾滋病的主要传播途径是
A.呼吸道传播
B.粪-口传播
C.性接触传播
D.虫媒传播
E.直接接触传播
第8题
传染性非典型肺炎的最主要传播途径是()
A.经呼吸道飞沫传播
B.经消化道传播
C.经粪-口途径传播
D.接触传播
E.虫媒传播
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