4 、反应 2N 2 O 5 4NO 2 + O 2 , v (N 2 O 5 ) 、 v (NO 2 ) 、 v (O 2 ) 之间关系正确的是 .. (A) v (N 2 O 5 ) / 2 = v (NO 2 ) / 4 = v (O 2 ) ; (B) v (N 2 O 5 ) = v (NO 2 ) = v (O 2 ) ; (C) 2 v (N 2 O 5 ) = 4 v (NO 2 ) = v (O 2 ) ; (D) 2 v (N 2 O 5 ) = 4 v (NO 2 ) + v (O 2 ) 。/js/editor20131024/themes/default/images/spacer.gif
4 、反应 2N 2 O 5 4NO 2 + O 2 , v (N 2 O 5 ) 、 v (NO 2 ) 、 v (O 2 ) 之间关系正确的是 .. (A) v (N 2 O 5 ) / 2 = v (NO 2 ) / 4 = v (O 2 ) ; (B) v (N 2 O 5 ) = v (NO 2 ) = v (O 2 ) ; (C) 2 v (N 2 O 5 ) = 4 v (NO 2 ) = v (O 2 ) ; (D) 2 v (N 2 O 5 ) = 4 v (NO 2 ) + v (O 2 ) 。/js/editor20131024/themes/default/images/spacer.gif
(l)o×m0%=lo0(o)o5%o=75(5)e0%o+55%o=lo5(m)l5o+50=l50(5)九o+mo=l7九(e)o+l5%o=ll5.
(l)o×m0%=lo0(o)o5%o=75(5)e0%o+55%o=lo5(m)l5o+50=l50(5)九o+mo=l7九(e)o+l5%o=ll5.
正常胸膜腔内的压力为()。 A: -5~-10mmH<sub>2</sub>O B: 5~10mmH<sub>2</sub>O C: -10~-15mmH<sub>2</sub>O D: 5~-10mmH<sub>2</sub>O E: 5~10mmH<sub>2</sub>O
正常胸膜腔内的压力为()。 A: -5~-10mmH<sub>2</sub>O B: 5~10mmH<sub>2</sub>O C: -10~-15mmH<sub>2</sub>O D: 5~-10mmH<sub>2</sub>O E: 5~10mmH<sub>2</sub>O
Which of the following sounds the politest? A: Come to my office at 5 o’clock. B: Please come to my office at 5 o’clock. C: Please come to my office around 5 o’clock. D: Could you come to my office around 5 o’clock?
Which of the following sounds the politest? A: Come to my office at 5 o’clock. B: Please come to my office at 5 o’clock. C: Please come to my office around 5 o’clock. D: Could you come to my office around 5 o’clock?
微需氧菌需要的气体环境一般是( ) A: 5%O,10%H ,85%N B: 5%O,15% CO ,80%N C: 5%O,10%CO ,85%N D: 10%O,5% CO ,85%N
微需氧菌需要的气体环境一般是( ) A: 5%O,10%H ,85%N B: 5%O,15% CO ,80%N C: 5%O,10%CO ,85%N D: 10%O,5% CO ,85%N
【单选题】O(1) , O(10000logn ), O(n!) , O(nlogn) , O(n 2 ) , O(10 5 n) , O(0.0001n 3 ) , O(2 n ) , O(10 -9 n 3 +2n+100)中时间复杂度最高的是 A. O(n!) B. O(10000logn ) C. O(10 5 n) D. O(2 n )
【单选题】O(1) , O(10000logn ), O(n!) , O(nlogn) , O(n 2 ) , O(10 5 n) , O(0.0001n 3 ) , O(2 n ) , O(10 -9 n 3 +2n+100)中时间复杂度最高的是 A. O(n!) B. O(10000logn ) C. O(10 5 n) D. O(2 n )
若一个算法的语句执行次数为5*6, 则表示成时间复杂度为( )。 A: O( 5 ) B: O( 6) C: O( 30 ) D: O( 1 )
若一个算法的语句执行次数为5*6, 则表示成时间复杂度为( )。 A: O( 5 ) B: O( 6) C: O( 30 ) D: O( 1 )
腕关节的功能位,是背伸 A: 0o B: 5 o~15 o C: 20 o~25 o D: 30 o~60 o E: 50 o~60 o
腕关节的功能位,是背伸 A: 0o B: 5 o~15 o C: 20 o~25 o D: 30 o~60 o E: 50 o~60 o
The library________ at 5 o’clock every day.
The library________ at 5 o’clock every day.
焊接用O2气体的纯度应大于5%,含水量、含氮量均不应超过﹪,否则会降低焊缝的机械性能() A: O·O5 B: O·l C: O·2 D: O·5
焊接用O2气体的纯度应大于5%,含水量、含氮量均不应超过﹪,否则会降低焊缝的机械性能() A: O·O5 B: O·l C: O·2 D: O·5