A. situation
B. occasion
C. emergency
D. condition
第1题:
第2题:
下面关于CSS样式优先级,正确的是
A.!important > id > class > tag
B.id> !important > class > tag
C.!important > tag > class > id
D.tag> id > class > !important
第3题:
定义状态机当前状态为state ,次态为next _state; 输入a,输出b, 则下列为Mealy状态机的写法是:
A.always@(posedge clk) case (state ) 0:next_state<=1; 1:next_state<=x;#B.always@(posedge clk) case (state ) 0: if(a==0)next_state<=1; else next_state<=x; 1:next_state<=x;#C.always@(posedge clk) case (state ) 0: if(state==0)next_state<=1; else next_state<=x; 1:next_state<=x;#D.以上都正确第4题:
第5题:
定义状态机当前状态为state ,次态为next _state; 输入a,输出b, 则下列为Mealy状态机的写法是:
A.always@(posedge clk) case (state ) 0:next_state<=1; 1:next_state<=x;#B.always@(posedge clk) case (state ) 0: if(a==0)next_state<=1; else next_state<=x; 1:next_state<=x;#C.always@(posedge clk) case (state ) 0: if(state==0)next_state<=1; else next_state<=x; 1:next_state<=x;#D.以上都不对第6题:
CSS优先级说法正确的是?
A.!important > id > class > tag
B.!important < id < class < tag
C.!important>class>id>tag
D.!important>tag>id>class