Which of the following expressions can be used to persuade others?
A. Why don't you...?
B. Don't you think it would be better to ...?
C. I see what you mean, but...
D. If I were you, I'd...
E. Are you sure you won't reconsider...?
查看答案
Which of the following expressions can be used to give advice?
A. Why don't you...?
B. I recommend that you...
C. If I were you , I'd
D. What have you been up to?
单调有界收数列必定收敛。 ( )
A. 对
B. 错
如果一个数列收敛,则该数列必定是单调且有界的。( )
A. 对
B. 错
有限个无穷小量的代数和是无穷小量。 ( )
A. 对
B. 错
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