1. What’s the main idea of Paragraph 2? A. The great inventions of Archimedes. B. A brief introduction to Archimedes. C. Archimedes’ discoveries in maths. D. Archimedes’ study on the universe. 2. What does the underlined word “It” refer to in Paragraph 3? A. The Archimedes’ Sc...
Archimedes was in deed a genius.1.What's the main idea of paragraph 2? A. A brief introduction to Archimedes. B. Archimedes' discoveries in maths. C. The great inventions of Archimedes. D. Archimedes' study on the universe. 2.What does the underlined word "It" refer to in paragraph ...
Step-by-step analyses of the key arguments are provided and the philosophical heart of the issues is revealed without recourse to jargon, maths, or logical formulas. The book introduces Einstein's revolutionary ideas in a clear and simple way, along with the concepts and arguments of ...
There is a man___Rubik who invented a special cube. He called it Magic Cube(魔方). It has become one of___puzzle games(益智游戏)all over the world. Rubik was born in Hungary(匈牙利)___World WarⅡ. Rubik’s family was very interesting. His mother was a poet. She was a free thin...
In 1816,Frenchman Joseph Nicéphore Niépceinvented the first photographic camera. A camera is an optical device that captures pictures that can be kept internally, sent to another place, or both. These visuals might be simple photos or moving images like videos or movies. The term camera is de...
Who invented the personal computer or PC? To answer this question, we need to go back 5,000 years!Even 5,000 years ago, people used maths. For example, a farmer needed to know how many crops (庄稼) to (1)___ for a sheep (羊). In Babylonia, people dug lines into the sand and...
The maths was beyond me, even at its most basic level. I became weary as the day wore on, but Klein by contrast became more and more alert. He thrived on this kind of encounter. At eight o’clock that evening an agreement was reached. David and Chris, acting also for Kit in this...
Who discovered the principle of inertia ? 01:02 Who invented wireless telegraphy ? 01:51Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths Cengage Solutions for Maths DC Pandey Solutions for Physics HC Verma Solutions for Physics Sunil Batra Solutions...
Sunday Help Frank with his Maths 【1】Where does Lucy meet Tim? A. At Frank’s house. B. At Lucy’s house. C. At the station. D. In the hospital. 【2】How many hours a week does Lucy do her part-time job? A. Five hours B. Eight hours C. Ten hours D. Eleven hours 【3...
Stephen Hawking, the best known physicist(物理学家) of his time, passed away on 14 March 2018.Hawking was born in Britain in 1942. He was a student at Oxford University. He studied maths and science. Then, at the age of twenty, he became sick. He was so young, but the doctors said...