附有销售退回条件的商品销售，如果企业能够按照以往的经验对退货的可能性作出合理的估计，

The third paragraph is developed mainly by______

A． providing different examples

B． following the order of space

C． making comparisons

D． analyzing causes

The passage is mainly developed by _______.

A.analyzing causes

B.making comparisons

C.examining differences

D.following the time order

This passage is mainly about

A．how medicine is taught in America．

B．how medical education has developed in America

C．how the American educational system works．

D．how one can become a good doctor．

This passage is mainly about __________. 查看材料

A.how medicine is taught in America

B.how medical education has developed in America

C.how the American educational system works

D.how one can become a good doctor

This passage is mainly about

A．how medicine is taught in America.

B．how medical education has developed in America.

C．how the American educational system works.

D．how one can become a good doctor.

What does the passage mainly talk about？

A．The development of home and market economies.

B．The economy of developed nations.

C．The history of art.

D．How to make money.

The passage is mainly about ______.

A．a brief history of software and hardware

B．a new trend of present-day computer science

C．a useful piece of software developed by hardware engineers

D．a strange phenomenon that hardware engineers migrate toward software

A．By inference

B．By making comparison

C．By listing examples

D．By introducing a practical method

A.steps in a process

B.description of objects

C.the telling of a story

D.examples