80. Advertisement: Clark brand-name parts are made for cars manufactured in this country. They satisfy all of our government automotive tests-the toughest such tests in the world. With foreign-made parts, you never know which might be reliable and which are cheap look-alikes that are poorly constructed and liable to cost you hundreds of dollars in repairs. Therefore, be smart and insist on brand-name parts by Clark for your car.

The argument requires the assumption that

A. Clark parts are available only in this country

B. foreign-made arts are not suitable for cars manufactured in this country

C. no foreign-made parts satisfy our government standards

D. parts that satisfy or government standards are not as poorly constructed as cheap foreign made parts

E. if parts are made for cars manufactured in our country, they are not poorly constructed

参考答案：D

思路：C东东通过了G test, 所以，选C东东，不选国外东东。

A. 无关，而且有only,

B. 加强。

C. 无关。用不用G和国外的与satisfy standards 无关。

D. 取非。通过了test的G与国外的一样。削弱。

E. 加强。

请问E为何不是答案啊

查过以前的贴子 没有解释清楚

谢谢

原文的assumption不是

if parts are made for cars manufactured in our country, they are not poorly constructed

而是

if parts satisfy the goverment test, they are not poorly constructed.

原文的前提不是在国内生产，而是要通过检测