【判断题】Father Embarrassed Diana by persuading a colleague into pressing his son to ask her to the senior prom.
【判断题】链条磨损后会导致的结果是影响链与链轮的啮合,致使脱链。
【判断题】按GB7588-2003《电梯制造与安装安全规范》规定,电梯不能用带式制动器,是因为其结构太简单。
【判断题】金属应变片与半导体应变片的工作原理相同;[ 难度等级A ]
【判断题】Diana didn't work very hard until she entered senior high school.
【简答题】Mark Ramirez, a senior executive at AOL, could work in the comfortable leather chair, if he wanted. No, thanks. He prefers to stand most of the day at a desk raised above stomach level. “I’ve got my k...
【判断题】按GB7588-2003《电梯制造与安装安全规范》规定,机房可以用木板做围壁。