题目内容

MySQL中的常量主要有哪些?

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MySQL中根据变量的定义方式有几种?

----_____ is your dictionary? ---- 10 Yuan.

A. How much
B. How many
C. What
D. Whose

----_______ subjects do you have ? ---- Seven.

A. How long
B. How many
C. How much
D. How far

----_______ do you like best? ---- I like maths best.

A. Which subject
B. What food
C. What color
D. Which sport

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