以下属于浅部真菌感染的是（）
A.牛皮癣
B.白屑风
C.圆癣
D.马桶癣
E.紫白癜风
参考答案：C, E
请写出命题“矩形的对角线相等”的逆命题：______，并判断你所写出的命题是否成立______（填“是”或“否”）．
I ________ this English book since I came to Hefei No．28 High School．[ ]
A．have bought
B．bought
C．have had
