2.函数的图象和函数
的图象的交点个数是 .
1.若函数的定义域为R,则实数a的取值范围是 .
35. -I’m afraid I can’t memorize so many new words in 2 days.
-_______.
A.Don’t be afraid B.You are clever C.Not at all D.Take your time
34. Failure is never pleasurable, but it can make a positive contribution to your life_____ you learn to use it.
A. since B. once C. until D. unless
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