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练手测试

Authored by Brisa Lu

Mathematics

7th Grade

Used 1+ times

练手测试
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21 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

气象部门预测,高度每增加1千米,气温大约下降5℃。现在地面气温是15℃,那么4千米高空的气温是______℃

5

0

-5

-15

2.

MULTIPLE SELECT QUESTION

1 min • 5 pts

NOA最美/酷的人是

CC和噜噜

噜噜和徐帅

CC和徐帅

欧阳老师和徐帅

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

下列说法正确的是

平方等于它本身的数只有0

立方等于它本身的数只有1,-1

绝对值等于它本身的数是非负数

倒数等于它本身的数有0,1,-1

4.

FILL IN THE BLANKS QUESTION

1 min • 5 pts

最大的负整数是 (a)   .

5.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

一口井深7米,有只蜗牛从井底往上爬,白天爬3米,晚上往下坠2米。问蜗牛几天能从井底爬出?

4天

5天

6天

7天

6.

FILL IN THE BLANKS QUESTION

1 min • 5 pts

-20+3-(-5)- |3-Π|

(a)  

7.

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

湖岸边有许多块石头,现在把石头拿起来,丢进水里,湖水水面会有什么变化

不变

上升

下降

湖面的水变成我的泪

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