EB1a自我推荐书中的问题，请教

请教2个问题，Eb1a申请书说明完第一点后I. I am an alien of extraordinary ability

后面需要说明2点还是1点就够？


说明2点的模板：

II. I will continue work in the area of extraordinary ability in the United States.

III. My future stay in the United States will substantially benefit this country. 

只说一点的模板：

II.     My future stay will substantially benefit prospectively the United   States (§203(b)(1)(A)(iii)).

另外，我是J1，需要会去服务2年。这一点需要在这里体现吗？ 而且我就不能说 II. I will continue work in the area of extraordinary ability in the United States. 只能说2年后再来工作。


多谢