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
参考答案：A
When the teacher praised him for working out the math problem, Jack looked __________ about at his classmates.
A．proud
B．proudly
C．pride
D．pridely
患者，男，74岁。感寒后出现呼吸喘促，喉间痰鸣，咯大量清稀痰。宜诊断为（）
A.短气
B.少气
C.喘
D.哮
E.少气
