妈妈买两件衬衫，每件158元，妈妈要付给售货员多少钱？_爱下问搜题

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问题解答题

妈妈买两件衬衫，每件158元，妈妈要付给售货员多少钱？

答案

158×2=316（元）

答：妈妈要付给售货员316元．

解答题

设x₁，x₂是方程2x²+4x-3=0的两个根，利用根与系数的关系，求下列各式的值：（1）（x₁+1）（x₂+1）（2）x₁²x₂+x₁x₂²．

单项选择题

Questions 24-30

·Look at the questions for this part.
·You will hear a passage about some types of advertising.
·For questions 24-30, indicate which of the alternatives A, B, or C is the most appropriate response.
·Mark one letter A, B or C on the Answer Sheet.

Television is an attractive advertising medium in that ______.

A．it has large audiences

B．it appeals to housewives

C．it is clear to understand