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【单选题】
已知时钟信号clkin的频率为50MHz的方波信号，下面clkout的频率为（ ）。module function(rst, clkin, clkout);input clkin, rst;output clkout;reg clkout;reg[2:0] cnt;always @(posedge clkin or negedge rst)begin if(!rst) begin cnt<=3'd0; clkout<=1'b0; end else if (cnt>=3'd4) begin cnt<=3'd0; clkout<=~clkout; end else cnt<=cnt+1'b1;endendmoduleA.
2.5 MHz
B.
20 MHz
C.
5 MHz
D.
10 MHz
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【单选题】The king promised to marry his daughter to ______ defeated the enemy.
A.
who
B.
whom
C.
whomever
D.
whoever
【判断题】It was said that William the Conqueror had promised the English throne to Edward, but the Witan chose Harold as king.
A.
正确
B.
错误
【判断题】It was said that William the Conqueror had promised the English throne to Edward, but the Witan chose Harold as king.
A.
正确
B.
错误
【简答题】Edward had verbally promised to have his cousin _________ to be the next king of Britain.
【单选题】The king promised to hold a great __________ for all his people.
A.
feast
B.
connection
C.
communion
D.
disposition
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