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【单选题】
设字长为8位，已知[X]补=E5H，则X=( )。A.
-1BH
B.
-9BH
C.
-65H
D.
–E5H
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【单选题】电路如图所示,试分析 电位器 RP 及电容 C 的作用
A.
调节电位器RP使静态时VT1、VT2管处于微导通状态，并使电容两端电压为 UCC；电容C的作用是通交隔直
B.
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C.
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