ADC0809转换时间为为100μs(时钟为640KHz时),130μs(时钟为500KHz时)
ADC0809转换时间为为100μs(时钟为640KHz时),130μs(时钟为500KHz时)
对于反应2Cu(s)+O2(g) =2 CuO(s),已知298K时, 该反应的ΔrGmθ=–260kJ/mol,则在298K,CuO(s)的ΔfGmθ为 A: -130 kJ/mol B: 130 kJ/mol C: -260 kJ/mol D: 260 kJ/mol
对于反应2Cu(s)+O2(g) =2 CuO(s),已知298K时, 该反应的ΔrGmθ=–260kJ/mol,则在298K,CuO(s)的ΔfGmθ为 A: -130 kJ/mol B: 130 kJ/mol C: -260 kJ/mol D: 260 kJ/mol
ADC0809转换时间为为100μs(时钟为640KHz时),130μs(时钟为500KHz时) A: 正确 B: 错误
ADC0809转换时间为为100μs(时钟为640KHz时),130μs(时钟为500KHz时) A: 正确 B: 错误
Glenn, the Canadian teacher, mentioned in the Cultural Focus video that the most popular girl’s names in 2013 were _____.
Glenn, the Canadian teacher, mentioned in the Cultural Focus video that the most popular girl’s names in 2013 were _____.
超高温灭菌法的杀菌参数为( )。 A: 72~75℃/15 s B: 80~85 ℃/10~15 s C: 62~65 ℃/30 min D: 130~150 ℃/0.5~4.0 s
超高温灭菌法的杀菌参数为( )。 A: 72~75℃/15 s B: 80~85 ℃/10~15 s C: 62~65 ℃/30 min D: 130~150 ℃/0.5~4.0 s
乘客电梯起动加速度和制动减速度最大值均不应大于m/s。/ananas/latex/p/130
乘客电梯起动加速度和制动减速度最大值均不应大于m/s。/ananas/latex/p/130
China's first manned spacecraft was launched in _____ with the astronaut, Yang Liwei, on board? A: 1973 B: 2000 C: 2003 D: 2013
China's first manned spacecraft was launched in _____ with the astronaut, Yang Liwei, on board? A: 1973 B: 2000 C: 2003 D: 2013
能用来判断变量x“在2013到2016之间(含2013和2016)”的表达式是: A: ( 2013 B: ( 2013 C: ( x >= 2013 ) && ( x D: ( x = 2013 ) E: ( x >= 2013 ) || ( x F: ( x >= 2013 ) | ( x
能用来判断变量x“在2013到2016之间(含2013和2016)”的表达式是: A: ( 2013 B: ( 2013 C: ( x >= 2013 ) && ( x D: ( x = 2013 ) E: ( x >= 2013 ) || ( x F: ( x >= 2013 ) | ( x
某AWGN信道带宽为50 MHz,信号噪声功率比为30 dB。则根据香农公式,该信道容量约为( )。 A: 40 Mbit/s B: 130 Mbit/s C: 150 Mbit/s D: 500 Mbit/s
某AWGN信道带宽为50 MHz,信号噪声功率比为30 dB。则根据香农公式,该信道容量约为( )。 A: 40 Mbit/s B: 130 Mbit/s C: 150 Mbit/s D: 500 Mbit/s
已知反应CaCO3(s)=CaO(s)+CO2(g),在298K时,ΔrGmθ=130 kJ·mol-1,1200K时ΔrGmθ= -15.3 kJ·mol-1,则该反应的ΔrHmθ= ,ΔrSmθ=
已知反应CaCO3(s)=CaO(s)+CO2(g),在298K时,ΔrGmθ=130 kJ·mol-1,1200K时ΔrGmθ= -15.3 kJ·mol-1,则该反应的ΔrHmθ= ,ΔrSmθ=