等效矩形应力图形替代受压区混凝土的应力图形，两个图形的等效条件是什么，等效结果是什么？

According to the passage, what attracts man's greater attention？

A. Fly ash.

B. The construction of dams, bricks, and roads.

C. Extracting aluminum, silicon, and magnetic from ash.

D. The available technology.

What is one of Netflix's main problems according to the passage？

A．It usually boasts the lowest price.

B．It requires man's full devotion to its business.

C．It fails to satisfy man's movie need immediately.

D．It sometimes delivers movies and TV shows improperly.

According to the passage, what does man care most among the following？

A．Clean air.

B．Health.

C．Industry.

D．The future of the children

According to the passage, what's the character of the author's mother？

A．Gentle.

B．Reserved.

C．Hot-tempered.

D．Restless.

According to the passage, what's the character of the author's mother？

A．Gentle.

B．Reserved.

C．Hot-tempered.

D．Restless.

According to the passage, what's the character of the author's mother？

A．Gentle.

B．Reserved.

C．Hot-tempered.

D．Restless.

What's the key to a successful student according to the passage？ ______.

A．Circumstances

B．Methods

C．Teachers

D．Motivation

According to the passage, what does man value among the following？

A．Industry.

B．Health.

C．The future of our children.

D．Clean air.

What's wrong with their marriage according to the woman？

A．The man married the wrong person.

B．The man is always late.

C．The man is always joking.

D．It's the man's fault.