问题
单项选择题
恶性黑色素瘤免疫组织化学染色可呈阳性的是（）
A.CK
B.HMtM5
C.EMA
D.LCA
E.CD117
答案
参考答案：B
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恶性黑色素瘤免疫组织化学染色可呈阳性的是（）
A.CK
B.HMtM5
C.EMA
D.LCA
E.CD117
参考答案：B
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| What do you do on weekends? Some people like to 1 at home, but others like to go 2 a walk or play football. My friend Jack works hard in a factory during the 3 . On weekends, he always 4 the samething. On Saturday he 5 his car and on 6 he goes with his family to the village by car. His uncle and aunt have a farm there. It isn't a 7 one, but there are always 8 things to do on the farm. The children help them with the animals and give them their 9 . Jack and his wife help in the fields(田地). At the end of the day, they are all 10 and Jack's aunt gives them a big meal. | ||||
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