填空题:YouTube can hardly generate profit becauseA. its content can 题目分类:英语六级 题目类型:填空题 查看权限:VIP 题目内容: YouTube can hardly generate profit becauseA. its content can be illegalB. it is only part of GoogleC.it is not well-known enoughD. it sets too many limits to users 参考答案: 答案解析:
电除尘器电场有效截面积尺寸为6mX l4m,电场有效长度为l8m,电场风速为l.19m/s,要求除尘效率为99%,粉尘的 电除尘器电场有效截面积尺寸为6mX l4m,电场有效长度为l8m,电场风速为l.19m/s,要求除尘效率为99%,粉尘的有效驱进速度为0.1m/s,电除尘器所需 分类:英语六级 题型:填空题 查看答案