乙酸乙烯酯（M1)和顺丁烯二酸酐（M2)进行共聚时，其竞聚率r1、r2的关系为r1×r2=0.0003，说明生成聚合物大分子中

eo would, were he not Romeo called" (Romeo and Juliet, Act 2, Scene 2,43-45) To what characteristics of language does Shakespeare refer？

A．Creativity.

B．Productivity.

C．Duality.

D．Arbitrariness.

eo would, were he not Romeo called" (Romeo and Juliet, Act 2, Scene 2,43-45) To what characteristics of language does Shakespeare refer？

A．Creativity.

B．Productivity.

C．Duality.

D．Arbitrariness.

A、Could you give me your name please？

B、Name？

C、What are you called？

D、What's your name？

What is the so called "poor man's gold"？

A．Gold

B．Diamond

C．Silver

What is the so called "poor man's gold"？

A．Gold

B．Diamond

C．Silver

A、It’s called Resonant Sand Gorge.

B、It’s called Singing Sand.

I______if there is a real God in the world.

A．know

B．wonder

C．wander

D．wandering