银屑病有以下哪些特征()
A.角化不全
B.结节
C.Munro氏微脓疡
D.角质形成细胞增殖加快
E.真中 * * 层毛细血管扩张
参考答案:A, C, D, E
My son __________ his clock when I went to get a cup I __________ in his study.
A.was winding up; had left
B.would up; had forgotten
C.had wounded; left
D.was winding up; forgot
常用的黑箱测试有等价分类法、 【4】 、因果图法和错误推测法4种。