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>> 成人高等教育 / 高等教育
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成人高等教育 / 高等教育
正确率：100%
降低贴现率，下列指标会变大的是（ ）。
- A、
净现值
- B、
现值指数
- C、
内含报酬率
- D、
投资回收期
- E、
平均报酬率
佳题速递：
4[单选题]
操作性条件反射的创始人是（斯金纳）
A.华生
B.巴甫洛夫
C.桑代克
D.斯金纳大学生心理健康教育 3[填空题]
土方建筑时，常以土的（ ）作为土的夯实标准。装配式混凝土建筑施工技术 在Visual FoxPro中，可以添加到视图中作为数据源的文件有（）.面向对象程序设计(信管) 题型描述: 阅读理解A team of archaeologists (考古学家) has gone to New Mexico to look for proof of one of the greatest stories of the 20th century: the UFO crash at Roswell. William Foleman, an archaeologist at the University of New Mexico, agreed to excavate (发掘) the site where the UFO supposedly crashed in 1947. What exactly happened on the site is unclear. In 1947, a young man discovered some debris (碎片) on the field. After investigating the crash, the US Army announced they had recovered a “fly disc”. Several hours later, an Air Force general announced that the crash was caused by a weather balloon again. The field was closed off for several days while the military cleaned up the site. Believers claim that the military found a crashed UFO, along with several dead bodies at the site. This story has inspired countless books, movies and TV shows, but no one has been able to find any evidence to support it. In 1997, the Air Force said the weather balloon story was made up and that the military was actually conducting a crash-test program with balloons. But Foleman isn’t so sure. While he says he’s “Still uncertain” about UFOs, he knows that “something happened in July 1947”.1.Some people believe a UFO _ _ _ _ _ _ at Roswell.A. LandedB. flewC. crashedD. disappeared2.An archaeologist went to the site to look for _ _ _ _ _ _ .A. fossilsB. aliensC. evidenceD. Answers3.In 1947 some debris (残骸) was found _ _ _ _ _ _ .A. in a fieldB. in a houseC. in a parkD. on a military base4.The Air Force said the debris had come from a(an) _ _ _ _ _ _ .A. planeB. weather balloonC. carD. explosion5.In 1997, the Air Force said their original story was _ _ _ _ _ _ .A. FalseB. exaggerated (夸张的)C. unclearD. true专科英语I 促胰液素的生理作用是生理学 物体的重心一定在物体的内部。理论力学