In ancient times, people used the abacus for calculation. What is the abacus made of? A. Glass B. Wood C. Plastic D. Ceramic 相关知识点: 试题来源: 解析 B。本题考查算盘的制作材料。A 选项“Glass(玻璃)”不是算盘的材料;C 选项“Plastic(塑料)”在古代也不是算盘的材料;D 选项“Ceramic(...
What is an abacus used for?相关知识点: 试题来源: 解析 用来进行数学计算,尤其是算术运算 算盘(Abacus)是一种古老的手动计算工具,其用途主要包括以下几个方面:1. **基本算术运算**:通过移动算珠的位置,使用者可以执行加法、减法、乘法和除法等运算。其档位和珠子排列符合十进制结构,直接对应数值。2. **...
Define abacus. Learn how to use an abacus and what an abacus is used for. Learn how an abacus works and how to count on an abacus. Learn to use a...
The user portrait is quick enough to sink and average users, while A stations are mainly young people, and the culture of the community is heavy. The acquisition of A stations can make good use of the fast user's lack of user circles, and logic is similar to the acquisition of Kwai Kw...
In fact, not just China, the global electricity market is also booming. In the report of the Institute of wealth research, Chinese luxury goods consumption reached 116 billion 800 million U.S. dollars, an increase of 9% over the same period last year, accounting for about about 740000000000...
An abacus is a calculating tool that has been used for centuries in various parts of the world. It consists of a frame with rods and beads.
句意:算盘真是个伟大的发明! 考查感叹句。根据“... great invention the abacus is!”可知,本句是感叹句,中心词是可数名词单数invention,感叹句型用“What a/an+形容词+名词单数+主谓!”,great是辅音音素开头的单词,不定冠词用a。故选C。反馈 收藏 ...
根据第二段第一句“The key to her success was an ancient technology called the abacus."可知,第一 段的主要目的是引出算盘这个主题。 故选B。 2.A 判题。 根据第三段的“ Iwas one of the many who had some math doubts and I felt a touch of fear of math. " 可知,作者的数学不好。 故选A...
In China, there's a traditional custom called zhuazhou, celebrated on a child's first birthday. During this event, various objects are placed around the child—such as a book, a mirror, food, a stethoscope, a seal and even an abacus. The belief is that the item the child selects firs...
The abacus, also called a counting frame, is a calculating tool which has been used since ancient times. It was used in the ancient Near East, Europe, China,