机械设备使用管理的“三定”制度，把机械设备使用、维护、保养等各环节都落实到（）。 A
题型：单项选择题
问题：
机械设备使用管理的“三定”制度，把机械设备使用、维护、保养等各环节都落实到（）。
A.具体责任人
B.班组
C.施工项目
D.安全主管
题型：单项选择题
| 完形填空 | |||
Jack Black has a big 1 . His grandfather and grandmother 2 in En gland. They are at home. Their 3 areNick Black and Anna Black. But Jack's parents are in China. Jack's 4 is an English teacher. He works in a middle school. Jack's mother 5 a teacher. She is a doctor (医生). Jack and his 6 Mary are students. They go to the same (同一个) 7 in Beijing. Jack is 8 Class One, Grade Seven. At school Jack has 9 good friends. They are Lin Feng, Li Lei, and Sun Weiming. Mary has many good friends, too. They 10 their school. | |||
| ( )1. A. bag ( )2. A. is ( )3. A. names ( )4. A. sister ( )5. A. is ( )6. A. sister ( )7. A. class ( )8. A. at ( )9. A. two ( )10.A. have | B. room B. are B. numbers B. mother B. isn't B. brother B. grade B. in. B. three B. like | C. family C. be C. address C. brother C. don't C. friend C. school C. on C. four C. meet | D. school D. am D. ID cards D. father D. are D. uncle D. classroom D. under D. five D. look |