小明有一些邮票,他把邮票的一半多2张送给小红,还剩下50张.他原来有多少张?
(50+2)×2,
=52×2,
=104(张);
答:他原来有104张.
— How ____ is it from here Ningbo to Xi'an?
— It's about two ____ flight. [ ]
A. long, hour's
B. far, hour's
C. long, hours'
D. far, hours'
蕈样肉芽肿是以下哪种细胞来源的肿瘤()
A.T淋巴细胞
B.B淋巴细胞
C.角质形成细胞
D.黑色素细胞