According to the passage, all the following statements are TRUE EXCEPT that______.
A. a competition process will be held to select the four astronauts
B. the cost of Mars One could go as much as $ 6 billion
C. if it goes as planned, we could expect to watch Mars One on TV
D. the four astronauts could return to Earth after a few years" stay on Mars
Peter,the tallest boy Ain our class, Bare going back to Chis hometown Dnext week.
肿瘤病人的机体免疫状态
A. 免疫防御过高
B. 免疫监视低下
C. 免疫自稳失调
D. 免疫耐受增强
E. 免疫防御低下
Only Awhen he Bapologizes for his rudeness CI will speak Dto him again.
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