在移植配型时,HLA各位点中抗原相配程度最为重要的是
A. HLA-D和HLA-DR
B. HLA-B和HLA-DR
C. HLA-A和HLA-DO
D. HLA-C和HLA-DR
E. HLA-A和HLA-DR
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下列关于巨球蛋白血症错误的是
A. 巨球蛋白血症是以分泌IgM的浆细胞恶性增殖为病理基础的疾病
B. 本病骨髓浸润、骨质破坏,但骨痛、骨折等表现较少
C. 主要表现骨髓外浸润,以肝、脾和淋巴结肿大为主要体征并伴有血黏滞过高综合征
D. 在实验室检查时,血清呈胶冻状难以分离
E. 将血清做适当稀释后可检出高水平的IgG型M蛋白,结合临床症状可以诊断本病
Special programs used to create multimedia presentations. ( )
A. Flash editors
B. desktop publishing programs
C. image editors
D. multimedia authoring programs
An operating system that controls a single desktop or notebook computer. ( )
A. desktop operating systems
B. NOS
C. Android
D. embedded operating systems
Raster images contain thousands of dots known as ( )
A. graphics
B. buttons
C. pixels
D. Utilities
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