题目内容
细胞内新合成的多肽链如果带有信号肽,它就被运送到细胞外成为分泌蛋白;如果不带有信号肽,它就留在细胞内。
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停泊蛋白(信号识别颗粒受体)是糙面内质网膜上的一种膜外在蛋白。
转运膜泡的形成、运输及其与靶膜的融合是一个耗能的特异性过程,涉及多种蛋白间识别、装配、去装配的复杂调控。
Krakov ElectronicsA leader in solid-state technologyKrakov began as a manufacturer of gas-discharge tubes in 1902. In the 1930s, many early computers used Krakov vacuum tubes. Today, Krakov specializes in manufacturing solid-state drives and storage （ 1 ）.What are solid-state electronics?Solid-state electronics consist entirely of （ 2 ） components. Krakov Electronics builds solid-state devices out of crystalline semiconductors. Semiconductors are unique because they contain both electrons and （ 3 ） holes. In solid-state devices, electrical current only flows within solid parts. Electrons and other charge carriers move within the confined space. This makes solid-state devices exceptionally fast and efficient.What is the difference between solid-state drives and hard disk drives?A hard disk drive (HDD) is an electromechanical device. An HDD stores information on a rigid, magnetic spinning disk. A solid-state drive (SSD) stores （ 4 ） in integrated circuits. The SSD has many advantages over devices with vulnerable moving parts. They are quieter, more durable, and more power-efficient. Make your next （ 5 ） device a Krakov solid-state drive!
3.工程师职业准入制度的五个环节的正确顺序是？（）
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