Proof-of-Concept研究与OPAL研究中均显示的结果是？

举证倒置(shifting the burden of proof)

The passage tells us that proof of life on Mars would

A．make clear the complex chemistry in the development of life

B．confirm the suggestion that bacterial fossils traveled to Earth on a meteor

C．reveal the kind of conditions under which life originates

D．provide an explanation why life is common in the universe

At first, Marshall couldn't produce the crowning scientific proof of his claim.

A．Y

B．N

C．NG

【B3】

A．evidence of the contract of carriage

B．a receipt of goods

C．proof of ownership of goods

D．the contract of carriage

Sorry, I can't bring () any proof of my story.

A、on

B、up

C、about

D、forward

A．evidence of the contract of carriage B．a receipt of goods C．proof of ownership of goods D．the contract of carriage

According to paragraph 6, the author use such evidence to refer to

A．proof of how the Ice Man died.

B．clues to how the Ice Man died.

C．theories describing how the Ice Man may have died.

D．the circumstances in which the Ice Man lived.

Whichphaseandservicecomponentincludescomparingthesolutionrequirementswiththebillofmaterialsandhigh-leveldesigninordertofinalizethedetailedbusinessandtechnologyrequirementsfortheCiscoUnifiedCommunicationssolution（）

A.Plan-ApplicationReadinessValidation

B.Prepare-ProofofConcept

C.Prepare-TechnologyStrategyDevelopment

D.Plan-SystemsRequirementsValidation

The passage tells us that proof of life on Mars would ________.

A) make clear the complex chemistry in the development of life

B) confirm the suggestion that bacterial fossils traveled to Earth on a meteorite

C) reveal the kind of conditions under which life originates

D) provide an explanation why life is common in the universe

The passage tells us that proof of life on Mars would ______.

A．make clear the complex chemistry in the development of life

B．confirm the suggestion that bacterial fossils travelled to Earth on a meteorite

C．reveal the kind of conditions under which life originates

D．provide an explanation why life is common in the universe