square是可数名词，单数前要加aIt is a square.需要加ait is a square它是一个正方形，的确需要加a可数名字square需要，因为square 是一个单数形式加a是一种意思，不加是另外的意思，各有各的用法。
Which of the following number is a square number?A.3B. 12C. 13D. 81 相关知识点: 试题来源: 解析 D 平方数(完全平方数)是指可以表示为某个整数的平方的数。逐项分析: A. **3**:没有整数平方等于3(1²=1,2²=4),因此不是平方数。 B. **12**:没有整数平方等于12(3²=9,4²=...
What is a square number? A square number is the result when a number has been multiplied by itself.For example, 25 is a square number because it’s 5 lots of 5, or 5 x 5. This is also written as 52(“five squared”).100 is also a square number because it’s 102(10 x 10, ...
is a compiete square number,then total number of those( ). A.4 B.6 C.8 D.10相关知识点: 试题来源: 解析 C. 由于 ab¯¯¯ + ba¯¯¯ 是完全平方数,且 a≤9 , b≤9 ,于是有 a+b=11 故 {a=2b=9 , {a=3b=8 ,…, {a=9b=2 ,共8组,故答案选C. 此题主要考察了利用...
【题目】A number of peopleon the square. The number of themabout 2,000. A.is; areB.is; isC.are; areD.are; is 试题答案 在线课程 【答案】D 【解析】 句意:许多人在广场上。他们的数量大约是2000。 本题考查a number of; the number of. A. be动词单数形式和复数形式;B. be动词的单数形式...
Every item you’re selling should have a SKU number. These codes help you track inventory, fulfill customer orders, and report on sales. Can two products have the same SKU number? SKU numbers are unique to each product. However, two products can have the same barcode and UPC number. ...
【题目】A number of people on the square. The number of them about 2,000. A.is; areB.is; isC.are; areD.are; is相关知识点: 试题来源: 解析 【答案】D 【解析】 句意:许多人在广场上。他们的数量大约是2000。 本题考查a number of; the number of. A. be动词单数形式和复数形式;B. be...
A bank account number is a unique set of digits assigned to the account when you open a bank account. Financial institutions will assign such numbers to each account you hold. Businesses and banks use these numbers to identify your account. A bank account number is not to be confused with ...
A square of are a 2 is inscribed in a square of are a 3, creating four congruent triangles, as shown below. What is the ratio of the shorter leg to the longer leg in the shaded right triangle? C(A) 1/5 ( B 1/4(C) 2-√3(D) √3-√2 ((E) √2-1 ...
Explore what square numbers are, including ways to use this maths aid at home to help parents teach their children with addition and subtraction.