在PowerPoint中,演示文稿与幻灯片的关系是( )。
A. 演示文稿即是幻灯片
B. 演示文稿中包含多张幻灯片
C. 幻灯片中包含多个演示文稿
D. 两者无关
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PowerPoint2010演示文稿文件的扩展名是( )。
A. pptx
B. potx
C. xlsx
D. htm
Which of the following cells do NOT have the biconcave disc shape?
A. fibroblast
B. chondrocyte
C. mature erythrocyte.
D. reticular cell
E. immature erythrocyte in the bone marrow.
For the basis of classification of leukocytes, which of the following statements is NOT true?
A. cell size
B. morphology of nucleus
C. specific granules
D. non-specific granules
E. phagocytizing capacity
Which of the following statements about eosinophils is CORRECT?
A. Constitute about 0.5%-3% of the leukocyte population.
B. Packed with coarse, pink-staining granules with Wright stain.
C. Usually have a polymorphous nucleus with 2 lobes.
D. Most are phagocytic leukocytes.
E. May release histaminase to ease the effects in allergic reaction.
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