下列选项哪些是“防风险保平安迎大庆”消防安全执法检查专项行动中对日常管理机制不健全问题的整治要求（）
A.单位未定期开展建筑消防设施检测和维护保养，并完整准确记录的，必须落实日常检查维修保养制度，每年至少进行一次全面检测，确保完好有效，并如实制作检测维保记录，存档备查
B.单位未定期开展检查巡查，并如实登记报告的，必须安排专人开展防火检查巡查，及时发现火灾隐患并妥善处置
C.消防安全重点单位必须每日开展防火巡查，公众聚集场所在营业期间必须每二小时开展一次防火巡查，医院、养老院、寄宿制学校、幼儿园必须加强夜间防火巡查。
D.单位存在火灾隐患的，必须及时整改消除火灾隐患；在火灾隐患消除之前，必须落实安全防范措施，确保消防安全
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The oldest adult human skull yet found belongs to the lowest grade of Homo erectus, and to the Australoid line. It is known as Pithecanthropus (Ape-Man) Number 4, because it was the fourth of its kind to be found. All four were unearthed in river banks in central Java. Number 4 is about 700,000 years old, and Numbers 1,2, and 3 between 600,000 and 500,000. We know this because tektites--small, glassy nodules from outer space--were found in the same beds as the first three, and the beds containing Number 4 lay underneath the tektite bed, along with the bones of a more ancient group of animals. These tektites have been picked up in large numbers in Java, the Philippines, and Australia, where they all fell in a single celestial shower. Their age--approximately 600,000 years--has been accurately measured in several laboratories by nuclear chemical analysis, through the so-called argon-potassium method. Pithecanthropus Number 4 consists of the back part of a skull and its lower face, palate, and upper teeth. As reconstructed by Weidenreich, it is a brutal-looking skull, with heavy crests behind for powerful neck muscle attachments, a large palate, and large teeth, as in apes. The brain size of this skull was about 900 cubic centimeters; modern human brains range from about 1,000 to 2,000 cc with an average of about 1,450 cc. The brains of apes and Australopithecines are about 350 to 650 cc. So Pithecanthropus Number 4 was intermediate in brain size between apes and living men. His fragmentary skull was not the only find made in the beds it lay in. Nearby were found the cranial vault of a two-year-old baby, already different from those of living infants, and a piece of chinless adult lower jaw. Two other jaws have been discovered in the same deposits which were much larger than any in the world certainly belonged to a Homo erectus. They are called Meganthropus (Big Man) and may have belonged to a local kind of Australopithecine, but this is not certain, If so, Homo erectus coexisted with, or overlapped, the Anstralopithecines in Java as well as in South Africa, which implies that man did not originate in either place, but somewhere in between.
A．found with the bones of animalsB．crystalline lumps of a glassy substanceC．a step in evolutionD．as old as Ape-Man Number 4
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