OG1 阅读 Q50

Choice B is the best answer. In lines 18-28("Within... projects."), the author of Passage 1 describes many of the possible economic benefits of space mining, including the building of "an off-planet economy" (line 25, "to...of any bonds"). The author of Passage 2 warns that there may be ramifications to implementing space mining and building an "emerging off-world economy" (line 73, "There's also...economy to") without regulation: "But miners have much to gain from a broad agreement on the for-profit exploitation of space. Without consensus, claims will be disputed, investments risky, and the gains made insecure" (lines 83-87,"But miners... insecure.").
Choices A, C, and D are incorrect because the author of Passage 2 does not suggest that the benefits to space mining mentioned in lines 18-28("Within... projects.") of Passage 1 are unsustainable, unachievable, or will negatively affect Earth's economy. Rather, the author recognizes the benefits of space mining but advocates for the development of regulation procedures.