己内酰胺以NaOH作为引发剂制备尼龙-6的聚合机理是______。

ephants with white crosses on their foreheads, and then exposed them to a large mirror containing a video camera.’ could be found in the Results section, and contains both Aim statement and Method used to investigate the scientific question posed.

n best be used to mean ______.

A．they felt both happy and satisfactory over the test results

B．they didn't expect to find the wonderful results

C．they wanted very much to do more research over the rocks

D．they were glad to see the results but they can't explain them

ultural interaction？ 4. What are the strategies for engaging in acculturation？ 5. What are the strategies of cultural coexistence？

A．They both enjoyed watching the game.

B．People were surprised at their winning the game.

C．They both felt good about the results of the game.

D．The man thought the results were beyond their expectations.

A．They both enjoyed watching the game.

B．People were surprised at their winning the game.

C．They both felt good about the results of the game.

D．The man thought the results were beyond their expectations.

Acculturation is the process of becoming adapted to a new culture.()

Explain why addition of HNO₃to concentrated H₂SO₄results in the formation ofandions. How could one test experimentally to confirm that such ions exist in H2SO4 solution？

What does the implication of the study？

A．The results of the study show that it is a step in the direction of a possible cure of AIDS.

B．The results of the study show that the sleeping cells could be activated by this drug.

C．The results of the study show that the drugs could get at the virus in the sleeping cells.

D．The results of the study show that the risk of the AIDS will not go away.