Help! Help me with my vacation research assignments!

The first question has multiple answers, and the quaternion equation has three conditions, and one answer is given first: a=3 b=1 c=2 d=4

Question 2: a=4 b= c=8

What grade is your child in? You have to do your own homework!

Do it casually, the teacher doesn't check.

The road is wide and the shoulders are broad.

Officiating a wedding creates life.

The wind is howling and the breeze is blowing.

The microwave ripples and the big waves are surging.

Excellent results and noble style.

Bright sunshine and bright moon.

Bright classrooms, fresh air.

Clean roads, beautiful singing.

In the sound of firecrackers, we ushered in the Chinese grandest festival - the Spring Festival, every family is full of joy, hanging red lanterns, pasting red Spring Festival couplets, busy ......On the first day of the first lunar month, it is another happy day. In the past, I was the last to get up, but today I won the first place because I wanted to smell the smell of firecracker smoke. Strings of firecrackers are lit in people's hands, the sound is so loud, splashing everywhere, as if to send every blessing to thousands of households, bursts of firecrackers one after another, crackling, lively.

After the sound of firecrackers, there's nothing to be fun about. Let's have breakfast and go out later! After dinner, I invited a few friends to play with me, and the firecrackers lit in the street bloomed beautiful flowers on the ground, which were very beautiful, and the pocket money given by my parents was in the bag, and Sensei was very happy.

Today's birds also came out to join in the fun, and they were probably very happy. The street is worthy of being on the street, with everything to play and eat. Most of the things I saw were some children, and I took a look, and the business of the spicy stall was the best:

I want a bunch of rice cakes! A fat boy shouted. How about going somewhere else?

In front of a stationery stall, I stopped again. There are all kinds of things to play with: model airplanes, telescopes, electric cars, ......It's all about play.

The most popular ones I find are those that are played. In other places, I also saw some selling balloons, pistols, skipping ropes, some selling snacks, snacks, fruits, everything to wear, and food, which is really strange. After playing all morning, I was going to visit relatives and friends again in the afternoon, which was undoubtedly a happy thing.

It was such a great time today! It's a feast for the eyes, two for the mouth, and three for the hands. Luckily for those sellers, business is booming today!

I really hope that today's children across the country will be happy and happy in the new year, without worries, but don't "lose your mind"! Brief comment: This article is based on what you have seen and heard in one day, and writes about the festive atmosphere of the Spring Festival.

Shooting firecrackers, shopping, writing all the way, in a lively atmosphere, wrote people's happy mood during the Spring Festival. It can be said that the "happy" of this article can be regarded as the eyes of the whole text. From the perspective of one-day activities, it reflects the liveliness of the traditional Spring Festival and the infinite happiness of people, and captures the key characteristics of the topic "Spring Festival".

Thank you..