Why did ancient people usually live where there were plenty of trees?
A.Trees provided them with shades
B.Trees indicated plenty of sunlight and rainfall
C.Trees were material for burning and building houses.
D.Trees provided them with fruit and food.
第4题
目前女性生殖系统恶性肿瘤发病率最高的是
A.外阴癌
B.阴道癌
C.子宫颈癌
D.子宫内膜癌
E.输卵管癌
第5题
鼻窦恶性肿瘤中发病率最高的是()
A.上颌窦恶性肿瘤
B.筛窦恶性肿瘤
C.蝶窦恶性肿瘤
D.额窦恶性肿瘤
E.鼻腔恶性肿瘤
第6题
鼻、鼻旁窦恶性肿瘤中发病率最高的是
A、上颌窦恶性肿瘤
B、筛窦恶性肿瘤
C、蝶窦恶性肿瘤
D、额窦恶性肿瘤
E、鼻腔恶性肿瘤
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