Punctuation
The period
Periods are used in the following instances.
1. At the end of sentences that do not ask questions or express strong emotion:
The lateral stress still needs to be calculated.
Let him look after himself.
2.After some abbreviations:
M.D., U.S.A., etc.
3.With decimal fractions:
4.056; $6.75; 75.6%
The exclamation point
The exclamation point is used at the end of a sentence that expresses strong emotion, such as surprise or doubt:
The nuclear plant, which was originally expected to cost $1.6 billion, eventually cost more than 14 billion!
Because technical writing requires objectivity and a calm, understated tone, technical writers rarely use exclamation points.
The question mark
The question mark is used at the end of a sentence that asks a direct question:
What did the commission say about effluents?
Do not use a question mark at the end of a sentence that asks an indirect question:
He wanted to know whether the procedure had been approved for use.
When a question mark is used within quotation marks, the quoted material needs no other end punctuation:
"What did the commission say about effluents?" she asked.
Читайте також: - Assignments for Punctuation
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