如果将细胞比作汽车,相当于发动机的结构是( )
A.叶绿体
B.液泡
C.线粒体
D.有机物
答案:C
An analyst does research about financial statements. Which of the following best describes the firm's financial performance over a period of time()
A. Balance sheet.
B. Income statement.
C. Cash flow statement.
精神分裂症的基本症状主要表现为()。
A.思维散漫、自我矛盾性、合群性或外向性
B.幻觉、妄想等症状
C.思维散漫、自我同一性、孤僻性或内向性
D.思维散漫、自我矛盾性、孤僻性或内向性
E.思维迟缓、自我矛盾性、孤僻性或内向性