根据图片和英语提示写句子。1.today, birthday___________爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题仿写题，造句

根据图片和英语提示写句子。

1. today, birthday _________________________________	2. book, his _________________________________
3. next Sunday, will, swimming _________________________________	4. nice, see _________________________________
5. how often, basketball _________________________________	6. like, play the piano _________________________________
7. who, woman _________________________________	8. football, favorite, sport _________________________________

答案

1. Today is his birthday.

2. The book is his.

3. Next Sunday, he will go swimming.

4. Nice to see you!

5. How often do you play basketball?

6. She likes to play the piano.

7. Who is that woman? She is my English teacher.

8. Football is our favorite sport.

答案不唯一

单项选择题

设T1和T2两个事务，他们对数据data的并发操作如下表所示(SLOCK data表示对数据data上S锁，UNLOCK data表示对数据data解锁)，对这个并发操作，下面说法正确的是______。 T1 T2

①请求
SLOCK data
读 data=20
②
③A=A+30 写回 A=50
COMMIT
UNLOCK data
④ 请求
SLOCK data
读data=20
写回data=50
COMMIT
UNLOCK data

A．该操作部能重复读
B．该操作符合完整性要求
C．该操作的第①步中，事务T1应该申请X锁
D．该操作的第②步中，事务T2不可能得到对data的锁

判断题

附着升降脚手架具有附着支承结构、防倾覆装置、防坠落装置就足够了，不必设置使架体同步升降和监控升降荷载的控制系统、升降动力设备以及安全防护。（）