A.Similarities between the calls of moms and chicks.

  B.The observation of fairy wrens across Australia.

  C.The data collected from Queensland’s locals.

  D.Controlled experiments on wrens and other birds.

60.Embryonic learning helps mother birds to identify the baby birds which       .

  A.can receive quality signals           B.are in need of training

  C.fit the environment better            D.make the loudest call

C

A new commodity brings about a highly profitable, fast-growing industry,urging antitrust（反垄断）regulators to step in to check those who control its flow. A century ago, the resource in question was oil. Now similar concerns ares being raised by the giants（巨头）that deal in data, the oil of the digital age. The most valuable firms are Google, Amazon, Facebook and Microsoft. All look unstoppable.

Such situations have led to calls for the tech giants to be broken up. But size alone is not a crime. The giants’ success has benefited consumers. Few want to live without search engines or a quick delivery. Far from charging consumers high prices, many of these services are free (users pay, in effect, by handing over yet more data). And the appearance of new-born giants suggests that newcomers can make waves, too.

      But there is cause for concern. The internet has made data abundant, all-present and far more valuable, changing the nature of data and competition. Google initially used the data collected from users to target advertising better. But recently it has discovered that data can be turned into new services: translation and visual recognition, to be sold to other companies. Internet companies’ control of data gives them enormous power. So they have a “God’s eye view” of activities in their own markets and beyond.

This nature of data makes the antitrust measures of the past less useful. Breaking up firms like Google into five small ones would not stop remaking themselves: in time, one of them would become great again. A rethink is required—and as a new approach starts to become apparent, two ideas stand out.

The first is that antitrust authorities need to move form the industrial age into the 21st century. When considering a merger(兼并), for example, they have traditionally used size to determine when to step in. They now need to take into account the extent of firms'data assets(资产) when assessing the impact of deals. The purchase price could also be a signal that an established company is buying a new-born threat. When this takes place, especially when a new-born company has no revenue to speak of, the regulators should raise red flags.

The second principle is to loosen the control that providers of on-line services have over data and give more to those who supply them. Companies could be forced to consumers what information they hold and how many money they make form it. Govemments could order the sharing of certain kinds of data, with users' consent.

Restarting antitrust for the information age will not be easy But if govemments don't wants a data oconomy by a few giants, they must act soon.

61.Why is there a call to break up giants?

A. They have controlled the data market

B. They collect enormous private data

C. They no longer provide free services

D. They dismissed some new-born giants

62.What does the technological innovation in Paragraph 3 indicate?

A. Data giants’ technology is very expensive

B. Google’s idea is popular among data firms

C. Data can strengthen giants’ controlling position

D. Data can be turned into new services or products

63.By paying attention to firms’ data assets, antitrust regulators could        .

A. kill a new threat                                                  B. avoid the size trap

C. favour bigger firms                                             D. charge higher prices

64.What is the purpose of loosening the giants’ control of data?

A. Big companies could relieve data security pressure.

B. Governments could relieve their financial pressure.

C. Consumers could better protect their privacy.

D. Small companies could get more opportunities.

D

Old Problem, New Approaches

       While clean energy is increasingly used in our daily life, global warning will continue for some decades after CO₂ emissions（排放）peak. So even if emissions were to begin to decrease today, we would still face the challenge of adapting to climate change. Here I will stress some smarter and more creative examples of climate adaptation.

       When it comes to adaptation, it is important to understand that climate change is a process. We are therefore not talking about adapting to a new standard, but to a constantly shifting set of conditions. This is why, in part at least, the US National Climate Assessment says that: “There is no ‘one-size fits all’ adaptation.” Nevertheless, there are some actions that offer much and carry little risk or cost.

      Around the world, people are adapting in surprisin