试述光电管的简单结构及其光谱特性、伏安特性、光电特性、暗电流的特点。
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In which two aspects does hot patching differ from conventional patching?（）
A. It consumes more memory compared with conventional patching.
B. It can be installed and uninstalled via OPatch unlike conventional patching.
C. It takes more time to install or uninstall compared with conventional patching.
D. It does not require down time to apply or remove unlike conventional patching.
E. It is not persistent across instance startup and shutdown unlike conventional patching.
案板岗主要是负责搓制各式（）皮类，制作及包制各式茶点。
A. 中西
B. 广式
C. 苏式
D. 各式小食
汽车年检是强制性的，主要检测车辆运行安全和营运技术状况。
A. 正确
B. 错误
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