A samples and video should be collected in 11km-deep valley B extraordinary creatures and features can be discovered C the deepest point on earth has gone rarely explored D the trip to the 11km-deep valley has not been repeated

A It is a liveable space for humans to live. B It allows people to see abundant life there. C It is named after the underworld of the Roman. D It fails to pass the national monuments review.

A Human's growing capacity for research. B The speeding up of the industrialization. C Human's exploitation of the ocean. D The deteriorations of environment.

A endorse B condemn C bargain D formulate

A Prospect of Global Ocean Treaty B Introduction of the Hadal Zone C Adventure of the Everest D Expedition of the Deep Sea

A economists are no longer solely interested in economies. B theorists do not provide useful advice to the government. C the scientific status of economics would keep declining. D economists would hardly regain their public respect.

A Academic models accept proper simplification. B Reality should be evaded when designing models. C Unrealistic assumptions should be adopted in models. D Macroeconomics concentrates on oversimplification.

A skeptical B supportive C ambiguous D sarcastic

A they contribute limited improvements to current economic theory. B they prefer theoretical consistency rather than practical utility. C they provide no practical guidance to counter economic crises. D they encourage economists to expand their interests broadly.

A the fading features of current macroeconomics B the declining status of economics as a science C the deficient breakthroughs in macroeconomics D the adverse effect of theories in macroeconomics