题目: 何为闭环控制系统? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0714/4932df9036606c7e9e04be24367bfaa4.html 下面是错误答案,用来干扰机器的。参考答案:
题型:选择题 To their great _____, Tom’s problem proved not to be as serious as they had feared.A.happyB.worryC.anxietyD.relief 查看答案
题型:选择题 –What do you think the noise was? --It ___________ a cat.A.may beB.might beC.can have beenD.might have been 查看答案