化学名为N′甲基-N-2-[[5-[[（二甲氨基)甲基]-2呋喃基]甲基]硫代]乙基]-2-硝基-1，1-Z烯二胺的药物

Compared with monogamy, polygamy is practiced ______.

A．by less people

B．mostly by young people

C．more commonly

D．by people who have many sisters or brothers

A．They have a great effect on everyone's intelligence.

B．They have some effect on many people's intelligence.

C．They have some effect on a few people's intelligence.

D．They have no effect on most people's intelligence.

How many brothers and sisters does Pancho have？

A．11.

B．12

C．13

The twin sisters were identical ________ appearance and character.

A. of

B. with

C. in

D. to

The twin sisters are so much alike that nobody could tell the difference them.

A．among

B．within

C．between

D．from

A．How many people are there in your family？

B．Do you have any siblings？

C．Do you have any brothers or sisters？

D．Are you a single guy in your family？

y to take full responsibility for their own well-being in areas that are so complex as assuring they have sufficient income for retirement or choosing a health plan

A．many people are not knowledgeable investors

B．it's vitally important for people to have sufficient income for retirement

C．Bush's "ownership society" appeal is not practical for many ordinary Americans

D．retirement benefits have nothing to do with healthcare on this issue

A．another

B．the other

C．the other one

D．another one