A They explained their steps to reduce greenhouse gas emissions. B They are reluctant to help fight against global warming. C They have made some corporations'thought changed. D They pointed out their understanding of companies'prospects.

A limited. B forbidden. C improved. D affected.

A Biased. B Objective. C Indifferent. D Supportive.

A its great achievement in dealing with climate change. B greenhouse gas emissions have been under control. C countries are striving to cope with climate change. D it has rules and laws against greenhouse gas emissions

A set up a new foundation to disseminate scientific papers. B transmit scientific papers through new means. C burden the publication expense ofits funding papers. D support more research works.

A investment. B funding. C loan. D award

A the unwillingness of many researchers to publish the original data. B the peer review process having failed to do what it should. C much long cycle for a paper to get published. D the demand of free access to scientific papers.

A Publishers will burden the cost of publication. B Readers will still pay for reading scientific papers. C More thorough approaches are still expected. D There is no solution to this problem.

A positive. B ironic. C indifferent. D opposed.

A Google is a holding company that set up by Alphabet in 2015. B Google's holding company benefits from lots ofbusinesses. C Google's business is mainly in the field of digital advertising. D Google has given up blocking certain online ads recently.