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發表於2024-11-09
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You are living in a world in which science,
technology, and nature are very important. You see
something about science almost every day. It might
be on television, in the newspaper, in a book at
school, or in some other place. Often you want more
information about what you see. The Raintree
Illustrated Science Encyclopedia will help you find
what you want to know. The Raintree encyclopedia
has information on many science subjects. You may
want to find out about mathematics, biology,
agriculture, computer science, lasers, or rockets, for
example. They are all in The Raintree lllustrated
Science Encyclopedia. And there are many, many
other subjects. "
There are twenty volumes in the encyclopedia.
The articles, which are called entries, are in
alphabetical order through the first 19 volumes. On
the spine of each volume, below the volume
number, are some letters. The letters above the line
are the first three letters of the first entry in that
volume. The letters below the line are the first three
letters of the last entry in that volume. In Volume l,
for example, you see that the first entry begins with
aar and that the last entry begins with art. Using
the letters makes it easy to find the volume you
need.
In the front of Volume 20, there are interesting
projects that you can do on your own. The projects
are fun to do, and they illustrate important science
principles.
Also in Volume 20, there are two special features
-- an index and a bibliography. They are described
in Volume 20.
Main Entries. The titles of the main entries in
The Raintree Illustrated Science Encyclopedia are
printed in capital letters. They look like this:
CAMERA.
The titles of some of the longer or more important
entries are printed in larger capital letters.
At the beginning of each entry, you will see a
phonetic pronunciation of the entry title. On page
viii, there is a pronunciation key. Use it the same
way you use your dictionary key.
At the end of each entry, there are two sets of
initials. They look like this: S.R.G./W.R.S. The first
set belongs to the person who wrote the entry. The
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science 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024