题目内容
（请给出正确答案）
What is the main goal of sending human missions to Mars？
A) To find out if life ever existed there.
B) To see if humans could survive there.
C) To prove the feasibility of large-scale space ventures.
D) To show the leading role of science in space exploration.
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更多“What is the main goal of sendi…”相关的问题
What does the author say about people believing in fixed ability？
A．They don't focus on goals that improve themselves.
B．They are more willing to commit to long-term goals.
C．They can't take on many challenging tasks at one time.
D．Their goals are to get better instead of being good.
What is the main idea of this article？
A．A new way of detecting cancer.
B．The history of thermography.
C．The value of thermography.
D．How to interpret a thermogram.
What is generally thought the main cause of deaths in Chile？ ()
A． Landslides
B． The tsunami
C． Aftershocks
D． The magnitude 9． 5 earthquake
What is the main difference between an electronic book and a LCD screen？
A．Electronic ink.
B．The portability they come to.
C．The convenience they make.
D．The content they store.
What is the main function of cyanobacteria？
A．To make more dust storms.
B．To keep the soil flying.
C．To keep the soil to the ground.
D．To create more rocks.
What is the main purpose of campaigners getting into the conference room？
A．To send the first-hand information outside of the conference.
B．To make their ideas known to the leaders of the G20 nations.
C．To give the world a glimpse of what G20 conference is like.
D．To ask politicians questions about Twitter and social media.
What is the main idea of this passage？
A．Dr. Whitten and Dr. Schanze's researching experiments on disinfection.
B．The possible way of eradicating hospital-caused infection and marine-dirt alike.
C．The history and development of antiseptics.
D．The process and principle of killing bacteria.
Which statement best depicts the main idea of the first paragraph？
A．Reality is what you make of it.
B．Time is like a river.
C．Emotions are powerful.
D．Every person has a special moment.
