【段4】①The Bilski case involves a claimed patent on a method for hedging risk in the energy market. ②The Federal Circuit issued an unusual order stating that the case would be heard by all 12 of the court’s judges, rather than a typical panel of three, and that one issue it wants to evaluate is whether it should “reconsider” its State Street Bank ruling.
【段5】①The Federal Circuit’s action comes in the wake of a series of recent decisions by the Supreme Court that has narrowed the scope of protections for patent holders. ②Last April, for example, the justices signaled that too many patents were being upheld for “inventions” that are obvious. ③The judges on the Federal Circuit are“ reacting to the anti-patent trend at the Supreme Court,” says Harold C. Wegner, a patent attorney and professor at George Washington University Law School.
We learn from the last two paragraphs that business-method patents
[A]are immune to legal challenges.
[B]are often unnecessarily issued.
[C]lower the esteem for patent holders.
[D]increase the incidence of risks.
答案：B
问：根据原文中的哪句话可以推测出29题的正确答案？
A : 段4句②
B : 段5句②
C : 段5句①
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