招标控制价是否应该公开？
Manually operated band brakes may be fitted and （） will have a brake arranged to fail-safe. ["the drive pump","the drive motor","the warp end","the purchase"]
短信银行月服务费如果连续（）次扣划失败的客户，系统将取消其短信银行签约关系。 ["10","20","30","40"]
视频或影像是具有交互性的图像。
压力机光电式冲压安全装置是怎样起到安全保护作用的？
通用飞机设计技术包括哪些？
