How does the author explain the pay gap between men and women fresh from college？

The pay gap between women and men tends to be bigger.

A．Y

B．N

C．NG

In paragraph 7, why does the author use the example of the Acacia tree？

A．To demonstrate how ants survive by living in trees

B．To explain how two species can benefit from contact

C．To show the relationship between plants and animals

D．To present a problem that occurs often in nature

Why does the author mention the visible-light microscope in the first paragraph？

A．To begin a discussion, of sixteenth-century discoveries.

B．To put the X-ray microscope in a historical perspective.

C．To show how limited its uses are.

D．To explain how it functioned.

Why does the author mention a bell and a rattle in lines 4-5 ？

A．To contrast the reactions of babies to human and nonhuman sounds

B．To give examples of sounds that will cause a baby to cry

C．To explain how babies distinguish between different nonhuman sounds

D．To give examples of typical toys that babies do not like

Could you give me a quick__________(explain)for how it works？

What does the author suggest that the government should do for women workers？

A．To ensure equal pay for women.

B．No solution is clearly suggested.

C．To explain why women are paidless.

D．To force employers to hire more women.

Why does the author mention Colonel Clark's expedition？

A．To explain how one state strengthened its land claims.

B．To criticize an effort to acquire additional agricultural resources.

C．To show that many explorers searched for new lands.

D．To question the validity of Virginia's claims.

What is the real purpose of the author to write this article？

A．To show that gap between men and women can never be wiped out due to the inner chemistry.

B．To stave off the frustrations that may occur in a relationship of any kind.

C．To advocate the exchange between different cultures.

D．To prove that women are more suitable for higher positions than men.

Why does the author mention Colonel Clark's expedition？

A．To explain how one state strengthened its land claims.

B．To criticize an effort to acquire additional agricultural resources.

C．To show that many explorers searched for new lands.

D．To question the validity of Virginia's claims.

A．To describe the texture and feel of the olfactory nerve

B．To emphasize the close connection between smell and the brain

C．To compare the power of smell with that of other senses

D．To explain how the sense of smell evolved in early humans