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【单选题】
电路如图所示，已知R1 =5kΩ，R2=15kΩ，R3 =10kΩ，RC =2kΩ，RE = 2kΩ，当电阻R2不慎被短路后(如图)，该电路中的晶体管处于( )。【图片】
A.
截止状态
B.
放大状态
C.
饱和状态
D.
开关状态
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相关题目：
【单选题】What does the writer tell us in the second paragraph?
A.
You won't need to go shopping at all with the help of RFIDs.
B.
You won't need to pay when go shopping with the help of RFIDs.
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You won't be able to use an oven without the help of RFIDs.
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You can easily buy what you need with the help of RFIDs.
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They are buying only what they need.
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They don't always need to be written down.
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