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【判断题】
三极管发射区掺杂浓度高。A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The muscle cell is an elongated cell, which is commonly called a muscle fiber.
A.
skeletal … mononucleate
B.
skeletal … multinucleate
C.
cardiac … multinucleate
D.
cardiac … mononucleate
【简答题】制动轮缸通常可分为 单活塞式 和 （ ） 两种。A. 双活塞式
【单选题】With the transmission electron microscope skeletal muscle fibers can be seen to contain structures called triads. What do the two lat- eral components of a triad represent?
A.
Attachment sites for thick myofilaments
B.
Sites for calcium sequestration and release
C.
Sites for impulse conduction into the fiber
D.
Sites for ATP production
E.
Sites for synthesis of proteins to be secreted outside the cell
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