题型:选择题 The rainbow is one of the most beautiful ___ in nature.A.phenomenonB.phenomenasC.phenomenaD.phenomenons 查看答案
题型:多项选择题 可伴有大量CD5(+)、CD1a(+)、CD99(+)、TDT(+)未成熟T淋巴细胞的肿瘤是()。A.B1型胸腺瘤B.B2型胸腺瘤C.B3型胸腺瘤D.化生性胸腺瘤E.淋巴上皮瘤样癌 查看答案