A.setInterval表示以指定时间为周期循环执行
B.setTimeout只在指定时间后执行一次
C.setTimeout不可以模拟setInterval来执行
D.setTimeout()只执行一次,而setInterval可以多次调用。
A.setInterval("tick()",10000)
B.setTimeout(tick,10000)
C.setTimeout("tick()",10000)
D.setInterval(tick,10000)
A.alert,clear,close
B.clear,close,open
C.alert,close,confirm
D.alert,setTimeout,write
例句1:Jane wants to go to Shenzhen.
例句2:Bob wants to go to Shanghai.
构建词袋模型形成的是(),例句1,2对应的向量为()。
A.[Jane,wants,to,go,Shenzhen,Bob,Shanghai],[1,1,2,1,1,0,0],[0,1,2,1,0,1,1]
B.[Jane,wants,to,go,Shenzhen],[1,1,1,1,1],[0,1,1,1,1]
C.[Jane,wants,to,go,Shenzhen,Bob,Shanghai],[1,1,1,1,1,0,0],[0,1,1,1,0,1,1]
D.[bob,wants,to,go,Shenzhen],[0,1,1,1,1],[1,1,1,1,1]
A.NO CHANGE
B.are close to 1 percent
C.differ greatly by gender
D.rival the 11.6 percent who go into professional baseball
如图所示,四台交换机已运行RSTP协议并完成生成树的计算。那么以下关于端口角色的描述,正确的是()。
A.SW2的G0/0/2为AP,SW3的GO/0/2为DP
B.SW4的GO/0/1为RP,SW4的Go/0/2为AP
C.SW4的G0/0/1为AP,SW4的G0/0/2为RP
D.SW2的G0/0/2为DP,SW3的G0/0/2为AP
Many Americans still _____1 whether honesty was an important part of the American Character.______2 that reason,there are ______3 watch-dog committees at all levels of society.Although signs of dishonesty in school,business,and government seem much more numerous in recent years than in the past,could it be that we are getting better at revealing such dishonesty? Some evidence is ______4 that dishonesty may ebb and flow.When times are hard,incidents of theft and cheating usually go ______ 5.And when times get better such incidents tend to go down.