划线部分求导怎么变得？

It's no good,isn't it 对吗？怎么理解

参考答案：

原文一般说成 It's not good, is it？

意思是 ：这个东西不好，对吗？

这是反义疑问句，前面用否定，后面用肯定形式，再加问号；或者说，前面用否定形式，后面用肯定形式，加问号。

譬如 It's good, isn't it 这个东西很好，不是吗？

祝您快乐，阿弥陀佛！

But she didn't it to benefit us，意思是：但她不是为了让我们受益。

但是你这个句子的语法组成不对。

应该改为：

But she didn't benefit us

1What is his name

2How is Jim

3What is her phone number

4What is that

5What color is your jacket

6How are you

7Janny is my name

8Tom is his name

9Gina is her name

追问：

对不起，我想你看错题目了，我是说 要变成一般疑问句和肯否定回答和否定句和对划线部分提问

回答：

1Is his name Tom

Yes,he is

No,he isn't

His name is not Tom

What is his name

2Is Jim fine

Yes,he is

No,he isn't

Jim is not fine

How is Jim

3Is her phone number 939-658

Yes,it is

No,it isn't

Her phone number is not 939-658

What is her phone number

4Is that a phone

Yes,it is

No,it isn't

That is not a phone

What is that

5Is your jacket red and black

Yes,it is

No,it isn't

My jacket isn't red and black

What color is your jacket

6Is this a blue pen

Yes,it is

No,it isn't

This is not a blue pen

What is this

7Am I well

Yes,I am

No,I am not

How are you

8Is your name Janny

Yes,I am

No,I am not

My name is not Janny

Janny is my name

Janny is not my name

9Is his name Tom

Yes,he is

No,he isn't

His name is not Tom

Tom is his name

Tom is no his name

10Is her name Gina

Yes,she is

No,she isn't

Her name is not Gina

Gina is her name

Gina is not her name

a dy/dt=ky

lny=kt+C

y=Ce^kt

y(0)=C=860

y(2)=860e^2k=1720

k=ln2/2

y(t)=860e^(tln2/2)=860(根号2)^t

y(t)=860(根号2)^t

b y(4)=8604=3440

c y(t)=860(根号2)^t=1410

t=143 h = 1 h 256 min

After 1 h 256 min it take for the population to reach 1410

It dosen't rain意思是没有下雨 it isn't rain 是错误的表达方式，it rains的否定形式只能是it doesn't rain 但可以说 It isn't raining现在没下雨

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