Câu hỏi :

Which of the following is TRUE?

A Heating and condensation produce the various products.

B The various petroleum products are produced by filtration.

C Chemical separation is used to produce the various products.

D Mechanical means such as the centrifuge are used to produce the various products.

* Đáp án

A

* Hướng dẫn giải

Phương pháp giải:

Copyright © 2021 HOCTAP247