28号技术通知单要求的T312配置为()
A: 1S
B: 2S
C: 3S
D: 4S
A: 1S
B: 2S
C: 3S
D: 4S
举一反三
- A: 2S B: 3S C: S D: 4S
- 设沉淀Ag3AsO4的溶解度为S,则[Ag+]= A: 3S B: S /3 C: 6S D: 4S E: 3S /4 F: 3S /2
- 电路如图所示,t=0时开关闭合,电路的时间常数为( )。[img=321x194]180321ea70a0bdf.png[/img] A: 2s B: 3s C: 1/3 s D: 1/2 s
- 【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}
- 以下要输出“hello,world!”正确的是? A: String s=String.format("%1s%2s","hello","world");System.out.println(s); B: String s=String.format("%1$s,%2$s","hello","world");System.out.println(s); C: String s=String.format("%s,%s","hello","world");System.out.println(s); D: String s=String.format("%1s,%2s","hello","world");System.out.println(s);