为满足电网调度的运引需要,重要遥测量的传送周期应不大于()
A.2S
B.3S
C.4S
参考答案:B
被外国媒体称为“东方魔稻”的是 年培育成功的第一代 。
Sorry. I have taken your sports shoes by mistake.()
A.That's right
B.You're welcome
C.It doesn't matter
D.All right