New Year's Eve means the end of the old year, the beginning of the new, and ______.
A.the coming of spring
B.the end of the holiday season
C.the beginning of giving big parties
D.the time for women to buy their new clothes
第3题
癌前疾病或癌前病变(precancerousdiseaseorprecancerouslesions)(名词解释)
第4题
A.癌前疾病(或病变)可以是获得性的或者遗传性的
B.大肠腺瘤为常见的癌前疾病(或病变)之一
C.癌前疾病(或病变)一定会发展为恶性肿瘤
D.从癌前疾病(或病变)发展为癌,可以经过很长时间
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