()3. What does the underlined word "that" refer to? A. To be a NASA engineer. B. To go to Arizon a State University. C. To get books about science. D. To take trips to NAS A. 相关知识点: 试题来源: 解析 What does the derlin a at" refer to" B. To go o AroaS D. To...
A galaxy is a large group of stars that orbit around a common point, usually a Supermassive Black Hole. Some galaxies, such as the dwarf Galaxy called Segue 2, do not have a Supermassive Black Hole but rather orbit a central gravitational point. The word galaxy comes from the French wo...
The word nature is derived from the Latin word natura, or "essential qualities, innate disposition", and literally means "birth".[1] Natura was a Latin translation of the Greek word physis (φύσις), which correlated plants, animals, and other features of the world as developing of...
根据第四段Generally,the three types of tears include emotional tears,which result from strong feelings such as joy or sadness.Basal tears lubricate(润滑)your eyes.Reflex tears release when dust or onion oxides annoy your eyes.(一般来说,这三种类型的眼泪包括情绪化的眼泪,这是由强烈的情绪(如喜悦...
Protists were the first eukaryotes to evolve. The word protist originates from the Greek word "protos," meaning first. A eukaryote is a cell that contains a nucleus, and a protist is a single-celled eukaryote. These organisms represent a diverse group th
NASA (National Aeronautics and Space Administration) UNICEF (The United Nations International Children’s Emergency Fund) JPEG (Joint Photographic Experts Group [image file type]) OSHA (Occupational Safety and Health Administration) You may recognize each acronym as a word that you have spoken or hea...
“What matters to us is the last time we unfolded it, we had no hitches.” Astronomers anticipate the observatory that launched on Christmas, a joint program of NASA, the European Space Agency, and Canadian Space Agency, will lead to countless discoveries. Infrared technology will pull back ...
three middle-school contestants on this premier episode of Encyclopedia Britannica's first quiz show series, “Show What You Know.” Using quizzes, music and comedy sketches, Chris and the kids go on a fun-filled tour of the Universe, which includes a guest appearance from a NASA scientist...
Operation ID: ConvertToWord Convert a standard latitude/longitude to words Parameters 展開表格 NameKeyRequiredTypeDescription Co-ordinates coordinates True string The input co-ordinates separated by a comma. Returns 展開表格 NamePathTypeDescription Country country string The country of the request...
And just in case you're wondering, NASA's zero-gravity flights aboard modified C-9 aircraft are not examples of antigravity. Neither is the levitation effect achieved in 2007 by countering Casimir force, a quantum force that essentially causes objects to stick to one another -- a type of na...