—,Kate. I need help. —OK,I'm coming. [ ]

根据上下文和所给的首字母写出正确的单词。

     Yao Ming is a famous basketball p______. He was b______ in Shanghai in 1980. He is as t______ as 2.26

metres. His parents are b______ tall. He plays basketball f______ Houston Rockets in the USA. Now more and

more Americans begin to like him. They think he plays very w_______. 

     He usually likes w______ sports clothes. When he has time, he e______ playing computer games and

listening to music. He loves animals. He likes dogs b_______. His f_______ food is sausage and tomatoes.

会计是（）。

A.经济管理活动

B.以凭证为依据

C.以货币为主要计量单位

D.针对一定主体的经济活动

E.针对任意主体的经济活动

甲、乙、丙三人去买书，他们买书的本数都是两位数字，且甲买的书最多，丙买的书最少，又知这些书的总和是偶数，他们的积是3960，那么乙最多买多少本书

A．18

B．17

C．16

D．15

《第一采气厂工业动火安全管理规定》第十四条《动火作业安全计划书》基本要求规定：一级《动火作业安全计划书》、二级《动火作业安全计划书》、三级《动火作业安全计划书》有效时间分别是（）。

A.3天，3天，5天

B.5天，5天，3天

C.5天，5天，10天

D.10天，10天，5天

有一个事务T要更新数据库中某表列的值，DBMS在执行T时发现更新后的值超出了该列的值定义范围，因此异常终止了T。为了保证数据的正确性及一致性，DBMS会执行下列哪个恢复操作______。

A) undo
B) 介质恢复
C) 进程恢复
D) redo