原发性肛门瘙痒症在病程中可出现哪些继发性皮损 （）
A.抓痕
B.血痂
C.皮肤肥厚
D.苔藓样变
E.皲裂
参考答案：A, B, C, D, E
单项选择。
请选择与句子划线部分相近的词或词组。
1. Where are you from? [ ]
A. is, from
B. come, from
C. do, come from
2. — OK. See you later.
— See you.
[ ]
A. Good-bye.
B. Hello!
C. How do you do?
3. The man in black is Mr. King. [ ]
A. in the black
B. in the black clothes
C. with the black
4. In Photo One, there is a car.
A. One Photo
B. Photos
C. Picture One
5. His mother isn't old.
A. is tall
B. is short
C. is young
男，24岁，头痛、头晕1个月，高热、鼻出血1周，浅表淋巴结不大，肝可及边，脾未及，血象：红细胞1．8×1012／L，白细胞3．5×109／L，血小板20×109／L：骨髓象：红系和粒系各阶段比例大致正常，但未见巨核细胞，最可能的诊断是（）
A.阵发性睡眠性血红蛋白尿
B.急性白血病
C.再生障碍性贫血
D.粒细胞减少
E.败血症
