选择题:The number of people invited fifty,but a number of 题目分类:专升本英语 题目类型:选择题 查看权限:VIP 题目内容: The number of people invited fifty,but a number of themabsent for differentreasons.A.were,wasB.was,wasC.was,wereD.were,were 参考答案:
As a child I used to wash my parents.car to earn s As a child I used to wash my parents.car to earn somemoneyB. easyC.pocketD. priv 分类:专升本英语 题型:选择题 查看答案
[填空题,2.7分] 在反馈放大电路中,如果反馈信号和输出电压成正比,称为_________反馈。 [填空题,2.7分] 在反馈放大电路中,如果反馈信号和输出电压成正比,称为_________反馈。 分类:专升本英语 题型:选择题 查看答案