248.
Choose the correct statement.
Düzgün məlumatı seçin.
Выберите правильную информацию.
The speed of sound is approximately 30 miles an hour.
We can see light, X-rays and gamma rays are too long to be visible.
The most typical material of the past was the product of organic synthesis.
The most important metal is diamond.
In detecting storms, radar can locate heavy clouds associated with various weather disturbances.
249.
Find the wrong sentence.
Səhv cümləni tapın.
Найдите не правильное предложение.
In England and Wales there is schools maintained by the state.
Schools maintained by local education authorities are country schools.
They may be primary or secondary schools.
Nearly all the primary schools are for boys and girls together.
Maximum class sizes as laid down by the Secretary of State are 30 for nursery schools.
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