An example of a rhetorical technique a candidate could use in an opening statement is?

“then” and “now” statements.

Explanation:

Rhetorical techniques are devices for the use of language to communicate effectively and persuasively. Depending on the speaker's purpose, different rhetorical techniques can be used in the opening statement.

As the question does not explain what kind of objective the speaker has with the speech, we can determine that a good rhetorical technique for an opening statement is the "then" and "now" statements, because this type of statement can be used as a basis for any discourse that wishes to appeal to logic, ethics or the public's emotions.

frederick the great and the war of austrian succession. frederick william of brandenburg-prussia trained his son, frederick, to be a hardy soldier. he also declared himself king of bohemia, and maria theresa sent troops to retake bohemia. in august he led 80,000 of these men across the frontier into bohemia, his