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【判断题】
若晶体管将集电极和发射极互换,则仍有较大的电流放大作用。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Lily didn’t ask her father to buy a car for her; , she bought one for him!
A.
in a word
B.
to be honest
C.
what’s more
D.
on the contrary
【简答题】A．She will do part-time jobs to cover it herself. B．Her father will buy it for her as a gift. C．She will pay it with her scholarship. D．Her father will share the expenditure.
【单选题】TCB是“计算机系统内保护装置的总体，包括硬件、软件、固件和负责执行安全策略的组合体。它建立了一个基本的保护环境，并提供一个可信计算机信息系统所要求的附加用户服务”。简单地说，TCB描述的是(18)。
A.
安全性
B.
可靠性
C.
稳定性
D.
可用性
【简答题】Her father (buy) her a dress for her birthday.
【简答题】Her
father (buy) her a dress for her birthday.
【简答题】简述软件保护的基本要求。
【单选题】She ______ to persuade her father to buy her a book in the end.
A.
made
B.
succeeded
C.
enjoyed
D.
managed
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