A feedback is an input ____A.which governs the state of a variableB.which provides a visual and audible alarmC.which indicates values of controlled variablesD.which measures the state of the controlled variable

第1题：

exception类中有哪个函数？

A．which()

B．what()

C．when()

D．where()

第2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3题：

下列Moore型状态机采用Verilog语言主控时序部分正确的是：

A．always@(posedge clk or negedge reset) begin if(!reset) current_state＜=s0; else current_state＜=next_state; end

B．always@(posedge clk ) begin if(!reset) current_state＜=s0; else current_state＜=next_state; end

C．always@(posedge clk t) if(reset) current_state＜=s0; else current_state＜=next_state;

D．always@(posedge clk or negedge reset) if(reset) current_state＜=s0; else current_state＜=next_state;

第4题：

4、exception类中有哪个函数？

A．which()

B．what()

C．when()

D．where()

第5题：

对于环境已经恶化的区域，更适合采用（）制定指标 For regions where the environment has been deteriorated, it is more appropriate to adopt （） for indicator settlement

A．pressure-state-response框架 The pressure-state-response framework

B．state-pressure-response框架 The state-pressure-response framework

C．response-pressure-state框架 The response-pressure-state framework

D．response-state-pressure框架 The response-state-pressure framework

第6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