A specialist is ______.
A.a person who can see the trees as well as the forest
B.a person who is well-educated in humanities
C.a person who is trained with skills in a particular field
D.a person who gives directions
第7题
肺结核的主要传播途径是
A、呼吸道传染
B、粪-口传染
C、血行传染
D、皮肤侵入
E、泌尿生殖系统侵入
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