遞交I130以後受惠人可以申請B1/B2簽證嗎?

好象以前在此讀過遞交I130以後受惠人可以申請B1/B2簽證.因為兄申請弟姐妹移民過程長達十幾年.在此期間若他們來美可申請B1/B2簽證.可是USCIS stated below不知是啥意思?是不是短住可以常住不行? 請大師解釋一下. 多謝了.

Can my sibling come to the United States to live while the visa petition is pending?

There is no avenue for your sibling to enter the United States prior to immigration on the basis of a pending Form I-130.  In most instances, the beneficiary of a pending or approved immigrant visa will not be eligible for a nonimmigrant visa, although certain exceptions may apply.