单项选择题
A.1’b0B.1’b1C.4’b1000D.4’b1110
A.assign a < =0;B.assign a =b[4:1];C.assign b ={a,2’b00};D.assign b =6’b5;
A.assign a < =0;B.assign a =b[4:1];C.assign b ={a,2’b00};D.assign a =5;
A.组合逻辑B.时序逻辑C.组合逻辑及时序逻辑
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