2.What is the age of Catherine Porter?
A: 18
B: 80
C: 53
D: 58
A: 18
B: 80
C: 53
D: 58
B
举一反三
- (2) Mrs Catherine porter is 90.
- Mr William Porter is very old. He's _____.And Mrs Catherine Porter is _____. Mr Porter is from _______.
- 4.What is the age of Susan? A: 87 B: 80 C: 58 D: 48
- In 2007,____of Americans age 18 and over were married. A: 37% B: 58% C: 29% D: 41%
- 下面哪一个表达式能正确表示逻辑关系："age≥18 或age≤60"？ A: age>=18 || age B: age>=18 or age C: age>=18 | age D: age>=18 && age
内容
- 0
表达式“AGE BETWEEN 18 AND 24”等价于 A: AGE>18 AND AGE<24 B: AGE>=18 AND AGE<24 C: AGE>18 AND AGE<=24 D: AGE>=18 AND AGE<=24
- 1
How old is John Porter? A: 52 B: 53 C: 54 D: 55
- 2
设有关系表S(NO，NAME，AGE)，其中AGE为年龄字段，则表达式AGE NOT BETWEEN 18 AND 24等价于（） A: AGE＜=18 OR AGE＞=24 B: AGE＜=18 0R AGE＞24 C: AGE＜18 OR AGE＞=24 D: AGE＜18 0R AGE＞24
- 3
设有关系表S(NO,NAME,AGE),其中AGE为年龄字段,则表达式 A: E NOT BETWEEN 18 AND 24 等价于： B: AGE<=18 OR AGE>=24 C: AGE<=18 OR AGE>24 D: AGE<18 OR AGE>=24 E: AGE<18 OR AGE>24
- 4
下面____表达式能正确表示逻辑关系:"age≥18或age≤60"? A: age>=18<br/>or age B: age>=18<br/>| age C: age>=18<br/>&& age D: age>=18<br/>|| age