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How to help primary school students write a math composition
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1, the bridge is 265 meters long, and consists of 1 1 semicircular stone arches, each with different lengths ranging from 16 meters to 2 1.6 meters. The bridge is about 8 meters wide and the road surface is flat, almost parallel to the river.

In real life, the number of tigers is very small. Of the nine kinds of tigers, four are extinct, and among the five existing tigers, some have only two digits left.

3. Commercial apples are native to West Asia or Eastern Europe, and there are about 7,500 varieties in the world. They are sweet, sour and nutritious, and are one of the fruits suitable for all ages.

For example:

1, there are many kinds of peppers, such as morning pepper, big green pepper, button pepper, lantern pepper and so on. But if you want to say the king of peppers, you have to count the meters of peppers.

2. Sunrise in the East China Sea and setting in the West Mountain is also a mixed day; Don't fall into a dead end, people are comfortable and their hearts are comfortable; Some things are fleeting, such as rainbows after rain; Some things are eternal, such as the friendship between you and me.

For comparison:

1, the rain in spring is delicate and gentle, and the rain in summer is rough and warm.

Many people have seen elephants and say that elephants are very big animals. In fact, there are animals much bigger than elephants, and that is whales.

3. Squirrels have a loud cry, which is sharper than that of weasels.

Unlike mountain rat, squirrels don't sleep in winter.

The rain in spring is delicate and gentle, and the rain in summer is rough and warm.

When we look at the sun, we think it is not big. It's actually very big. Only 6.5438+300,000 earths can be worth a sun.