单项选择题

真核细胞生物氧化的主要场所是: A.
核糖体 B.
线粒体 C.
溶酶体 D.
高尔基复合体 E.
过氧化物酶体

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单项选择题

Section B ConversationDirections: In this section, you will hear two long conversations. At the end of each conversations you will hear four questions. Both the conversations and the questions will be spoken only once. After you hear a question, You must choose the best answer from the four choices marked A ,B ,C and D. Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.Questions 8 to 11 are based on the conversation you have just heard.[音频]

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在PS中,选定图像的定界框后可按住( )进行翻转(每次15°)。A. ShiftB. CtrlC. AltD. 空格

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