24) There’s a ______________ at the British Embassy tonight. (receive)
24) There’s a ______________ at the British Embassy tonight. (receive)
如果想要防止199.88.77.0/24网络用TCP分组连接端口21, iptables命令( ): A: iptables –A FORWARD –s 199.88.77.0/24 –p tcp –-dport 21 –j REJECT B: iptables –A FORWARD –s 199.88.77.0/24 –p tcp -dport 21 –j REJECT C: iptables –a forward –s 199.88.77.0/24 –p tcp –-dport 21 –j reject D: iptables –A FORWARD –s 199.88.77.0/24 –p tcp –dport 21 –j DROP
如果想要防止199.88.77.0/24网络用TCP分组连接端口21, iptables命令( ): A: iptables –A FORWARD –s 199.88.77.0/24 –p tcp –-dport 21 –j REJECT B: iptables –A FORWARD –s 199.88.77.0/24 –p tcp -dport 21 –j REJECT C: iptables –a forward –s 199.88.77.0/24 –p tcp –-dport 21 –j reject D: iptables –A FORWARD –s 199.88.77.0/24 –p tcp –dport 21 –j DROP
【单选题】曲线 r(s)={cos(√2s/2),sin(√2s/2),√2s/2} 在s=0 的近似曲线为 (2.0分) A. R(s)={s,s^2/2,s^3/6} B. R(s)={s,s^2/4,s^3/24} C. R(s)={s,s^2/3,s^3/6} D. R(s)={s,s^2/3,s^3/24}
【单选题】曲线 r(s)={cos(√2s/2),sin(√2s/2),√2s/2} 在s=0 的近似曲线为 (2.0分) A. R(s)={s,s^2/2,s^3/6} B. R(s)={s,s^2/4,s^3/24} C. R(s)={s,s^2/3,s^3/6} D. R(s)={s,s^2/3,s^3/24}
ITU-T建议有两种TDM通信系统,其中E1的数据率与话路数分别为( ) 。 A: 1.544 Mbit/s,24 B: 1.544 Mbit/s,30 C: 2.048 Mbit/s,24 D: 2.048 Mbit/s,30
ITU-T建议有两种TDM通信系统,其中E1的数据率与话路数分别为( ) 。 A: 1.544 Mbit/s,24 B: 1.544 Mbit/s,30 C: 2.048 Mbit/s,24 D: 2.048 Mbit/s,30
ITU-T(原CCITT)建议有两种PCM体制,其中E1的数码率和话路数分别为( ) A: 1.544 Mbit/s, 24 B: 1.544 Mbit/s, 30 C: 2.048 Mbit/s, 24 D: 2.048 Mbit/s, 30
ITU-T(原CCITT)建议有两种PCM体制,其中E1的数码率和话路数分别为( ) A: 1.544 Mbit/s, 24 B: 1.544 Mbit/s, 30 C: 2.048 Mbit/s, 24 D: 2.048 Mbit/s, 30
作为公认的优质烟叶原料产地,贵州的经纬度是?() A: 24°37′N~29°13′N,103°36′W~109°35′W B: 24°37′S~29°13′S,103°36′E~109°35′E C: 24°37′N~29°13′N,103°36′E~109°35′E D: 24°37′S~29°13′S,103°36′W~109°35′W
作为公认的优质烟叶原料产地,贵州的经纬度是?() A: 24°37′N~29°13′N,103°36′W~109°35′W B: 24°37′S~29°13′S,103°36′E~109°35′E C: 24°37′N~29°13′N,103°36′E~109°35′E D: 24°37′S~29°13′S,103°36′W~109°35′W
【单选题】人眼的视觉暂留时间是多少 A: 1/12 s B: 1/24 s C: 1/36 s D: 1/48 s
【单选题】人眼的视觉暂留时间是多少 A: 1/12 s B: 1/24 s C: 1/36 s D: 1/48 s
某显示器颜色深度为24位,刷新频率为100 Hz,分辨率为1024*1024,则刷存带宽应() A: 24*100*1 MB/s B: 不小于24*100*1 MB/s C: 300 MB/s D: 不小于300 MB/s
某显示器颜色深度为24位,刷新频率为100 Hz,分辨率为1024*1024,则刷存带宽应() A: 24*100*1 MB/s B: 不小于24*100*1 MB/s C: 300 MB/s D: 不小于300 MB/s
“ Shall I compare thee to a summer’s day?” is from Shakespeare's sonnet ( ). A: 18 B: 16 C: 32 D: 24
“ Shall I compare thee to a summer’s day?” is from Shakespeare's sonnet ( ). A: 18 B: 16 C: 32 D: 24
设有关系表S(NO,NAME,AGE),其中AGE为年龄字段,则表达式 A: E NOT BETWEEN 18 AND 24 等价于: B: AGE<=18 OR AGE>=24 C: AGE<=18 OR AGE>24 D: AGE<18 OR AGE>=24 E: AGE<18 OR AGE>24
设有关系表S(NO,NAME,AGE),其中AGE为年龄字段,则表达式 A: E NOT BETWEEN 18 AND 24 等价于: B: AGE<=18 OR AGE>=24 C: AGE<=18 OR AGE>24 D: AGE<18 OR AGE>=24 E: AGE<18 OR AGE>24