火化遗体时必须凭公安机关或者卫生行政部门规定的医疗机构出具的死亡证明。火化后的骨灰，（）内无人认领的，由殡仪馆、火葬场作深埋处理。
Step right up and prove why you should get a one-way ticket to Mars! Well, wait——you might want to know a little more about the venture first.A Dutch company called Mars One began looking Monday for volunteer astronauts to fly to Mars. Departure for the Red Planet is scheduled for 2022, landing seven months later in 2023.The space travelers will return...never. They will finish out their lives on Mars, representatives from the nonprofit said. “It’s likely that there will be a crematorium (火葬场), ” said CEO Bas Lansdorp. “It’s up to the people on Mars to decide what to do with their death.”Still, the company said it has received more than 10,000 e-mails from interested would-be spacefarers.The one-way ticket makes the mission possible because it greatly reduces costs, and the technology for a return flight doesn’t exist, according to Mars One’s website. At a news conference, Lansdorp maintained that “no new inventions are needed to land humans on Mars.”The biggest obstacles, he said, are financial. The company has revealed some of its sponsors and hopes to gain more via media coverage. It’s not clear whether enough money will be collected in time. There are also practical issues: Can the kinks in having a sustainable system for people to survive in such a harsh environment be worked out by 2023?“Questions of reliability and robustness have to be answered before we leave Earth,” said Grant Anderson of Paragon Space Development Corporation, which builds life-support systems and is joining the Mars One effort.1. Which of the following statements is NOT true according to the passage?2. The word “spacefarers” in Paragraph 4 is closest in meaning to（ ）.3. The most difficult part of the program is that（ ）.4. What are the practical issues of the program?5. The word “robustness” in the last paragraph is closest in meaning to（ ） .
送葬告别是指开完追悼会后，由逝者家属随灵车到（)，在遗体火葬或土葬之前，举行简短的告别仪式。
A.火葬场或墓地
B.火葬场
C.墓地
D.殡仪馆