href = a.get("href", "")
"At that point in the investigation, we're [still] looking at 29 states here in the US. I mean, you're talking about tens of thousands of addresses, and that's a very, very daunting task," says Squire.
，更多细节参见新收录的资料
CORE Recommender (What is CORE?)
Spot on! Your intuition is leading you exactly where we need to go.