下列计算错误的个数是（）①（3x3）2=6x6；②（-5a5b5）2=-25a_爱下问搜题

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问题选择题

下列计算错误的个数是（　　）
①（3x³）²=6x⁶；②（-5a⁵b⁵）²=-25a¹⁰b¹⁰；③(-

2

3

x3)4=-

8

3

x3；④（3x²y³）⁴=81x⁶y⁷．

A．2个

B．3个

C．4个

D．0个

答案

∵①（3x³）²=9x⁶；②（-5a⁵b⁵）²=25a¹⁰b¹⁰；③(-

2

3

x3)4=

16

81

x12；④（3x²y³）⁴=81x⁶y¹²．

∴计算错误的①②③④．

故选C．

多项选择题

下列属于会计核算前提的是（）。

A.会计主体假设

B.会计分期假设

C.持续经营假设

D.实质重于形式假设

E.货币计量假设

完形填空

完形填空（共20小题；每小题1.5分, 满分30分）
Have you ever tried to draw a straight line, only to find it turns out all wrong? Or, wanted to show   1 at a party but the song you’d practised so many times suddenly   2  more difficult?
I’ve had both these 3 . As a Senior 3 student, I have to   4  many exams. Each time, I enter one, thinking “I   5  fail this time.”
But don’t be surprised --- it’s not   6   we don’t try, or don’t do enough preparation,   7 don’t take it seriously. On the contrary, it is because we put ourselves under too much   8 . It is thinking: “I must…” that makes us taste the terrible flavor of 9 ．
We often   10  to our friends: “Don’t be too hard   11  yourself!” But when we   12  our own goals, we may not listen to our own advice．
In doing so, we are making our path to success increasingly difficult．
So why not   13 this crazy pursuit(追求)to get the best? Just face the problem   14  before you with a calm mind, enjoy the hard work and you will succeed．
In my opinion,   15 a calm state of mind is a skill for life. For people who want to succeed, 16  this is a very important lesson．
So   17   time when you’re trying to draw a straight line or   18 a performance, tell yourself: “If I can just do it better than last time, it’s a   19 ． ”
Keep a calm state of mind, and you will be happy   20  you succeed or fail．

A．experiences

D．difficulties

C．shouldn’t