问题
单项选择题
在下列SQL的语句中，属于数据控制的是
A．CTEATE
B．SELECT
C．UPDATE
D．GRANT
答案
参考答案：D
解析： GRANT和REVOKE是SQL中的权限授予和回收语句，属于SQL的数据控制语句。
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在下列SQL的语句中，属于数据控制的是
A．CTEATE
B．SELECT
C．UPDATE
D．GRANT
参考答案：D
解析： GRANT和REVOKE是SQL中的权限授予和回收语句，属于SQL的数据控制语句。
| 阅读理解。 | ||||||||
| Tourist Visiting Singapore A group of 68 Australian tourists are staying at a hotel in Singapore. Today is Thursday. Their leader put up this notice in the hotel.
| ||||||||
| 1. Mrs. Johnson wants to go to the National Museum. Then we know that she will Not visit _____. | ||||||||
| A. Mount Faber B. the Aquarium C. the Crocodile farm D. Jurong Bird Park | ||||||||
| 2. On 21 July, they will leave the hotel room at about _____. | ||||||||
| A. 8:20 a.m. B. 8:40 a.m. C. 8:55 a.m. D. 9:10 a.m. | ||||||||
| 3. The last day for showing that a tourist wants to go on the tour is _____. | ||||||||
| A. Wednesday B. Thursday C. Saturday D. Sunday | ||||||||
| 4. Each tourist will pay _____ for the tour. | ||||||||
| A. $14. B. $12.20 C. $8.80 D. nothing | ||||||||
| 5. In note(b), 'punctual' means _____. | ||||||||
| A. happy B. very early C. on time D. awake |