There are two questions that I don t understand

Question 1: Question A means: Because you can keep the book tidy, (so) you can continue to use it, and the B comma is not needed.

Question 2: The previous THE should be a comparative level, the usage of a is wrong, and it feels uncomfortable to read, the sense of language.

Hope it helps

1.The answer is b.

2.It's okay to do both.

What is this? . .

as long as means only, and. It's the same length, and it's obviously not the right sentence.

for means because, and the sentence means: whatever you want with the book, because you can keep it clean.

Difficult generally describes the difficulty of a task that requires energy or technology.

hard is the difficulty of the question.

It should be,

1.If you want to choose B, you have to remove the you in the back.

2.To modify the adjective comparative, use much instead of more

Question 1 I also think it's b. Could it be that the answer is wrong?

But for also means 'because', which probably makes sense.

Question 2: I also think that you can choose A or B.

x is associated with infinity, and the previous equation only needs to see that the highest subnominator of the numerator is x 3, and the denominator is x 5

Then the limit is equal to x 3 x 5 = 1 x 2 and so on.

x tends to , lim1 x 2=0

And the back of 2+cosx-3sinx, due to |cosx|≤1，|sinx|1, then its digging must not exceed 2+1-(-3)=6

It is bounded, not infinity.

The ultimate limit is 0

The interpretation of the gods is shown in the diagram of the blind spine grip seepage in the following paragraph.

I'm sorry, but I haven't studied for years, so I can't help pull.

<> below should be 1308 and 1194 sensory questions.

He said two words, just thank you, there is a wind and a sound, this person is very polite. So I'm going to finish reading all the questions for him!

Question 2: Suppose that X sets of accessories can be produced completely every day.

Then x C parts, 3x A parts, and 2x B parts are needed every day, so 3x 15+2x 12+x 9=86 x=180, 3 180 15=36 people, 2 180 12=30 people, 180 9=20 people.

So A, B, and C are people, respectively.

It's an ordinary system of equation problem, just set a few unknowns, and solve the equation, it's very simple.

The sum of the first n terms of the proportional series is sn=a1(1-q n) (1-q), which is the property of the limit.

Since n is close to infinity and 0 q 1, q n is close to 0 so sn=a1 (1-q)=9

Your topic is junior high school. I'm a junior in high school, and I don't have authority, and I'm waiting to follow up.

1: away is a sentence followed by an adverb that needs to be inverted, c satisfies.

2: It means that there is a cry for help from the river, and there may be two present continuous is and past tense, and there is no present continuous tense in the option There is a past tense, so choose b

3: Typical Chinese English: I think the topic is a bit problematic. Isn't on the wall a prepositional phrase, can it be used as a subject?

4:we are going , i am going .Plus so flip.

5: I will choose B with a sense of language, and D is not easy to read. To be resolved.

6: The former sentence means that he has not decided, and the latter sentence means that neither do I. neither is used for negation, so is used for affirmation, and both are inverted.

Quiz everyone: This is a math problem that can measure whether a person has business acumen. Master Wang is selling fish, a pound of fish at a price of 45 yuan, now a big sale at a loss, the customer bought a kilogram for 35 yuan, gave Master Wang 100 yuan fake money, Master Wang has no change, so he asked a neighbor for 100 yuan.

Afterwards, the neighbor found out that the money was fake in the process of depositing money, and it was confiscated by the bank, and Master Wang lost 100 yuan to the neighbor, how much did Master Wang lose in total?

Note: The difference between catties and kilograms.

A total loss of 100 + (45 2-35) = 100 + 55 = 155 yuan.

1.1 divided by (1 10 + 1 12) = 60 112There is a person in the first class and a person in the second class B: A 4 + B 5 = 22; and a+b=98

Simultaneous two equations: a=48, b=50

3.There is a total of $A.

Chen used to get a 2 and now has a 3a 5

3a 5-a 2=200 so a=2000 yuan.

1. Assuming that the distance between two places is x, then the speed of A is x 10 and the speed of B is x 12. Assuming that the time is t, then x=x 10*t+x 12*t, we can calculate: t=hour.

2. Equation: x+y=98

1/4*x+1/5*y=22

Calculation: y=50 people x=48 people can be substituted for verification 3, assuming that the total number of bonuses is x yuan, then according to the question, it can be known:

3/5-5/2)*x=200

Calculation: x=1000 yuan can be substituted for verification.

(1 10 + 1 12) = 60 11 hours 2, 1 shift x, 2 shift y

x+y=98

1/4x+1/5y=22

x=48，y=50

3. Chen took 3 5, Li took 2 5, Chen took 1 5 more than Li, which corresponds to 200, so there is a total bonus of 200 (1 5) = 1000

11 (1 10 + 1 12) = 60 11 hours 2 with one shift x people, then 2 shifts 98-x people.

x/4+(98-x)/5=22

x=48 is 48 people in the first class and 50 people in the second class.

3 set bonus x then 3 x 5-x 2 = 200

x=2000

It seems to be an elementary school topic.,It seems that I went to college in vain.,I can't even do it.。。。