A letter to the president exposed the corruption of some managers in his firm; ______ t

Please attach a picture （) the letter.A、overB、onC、to

According to the text, the president admits to some "alternative" method due to______.A．ch

What may lead to the differences among the rings of the same tree？A．The weather.B．The expo

Which category of writing does the passage belong to？A．Description.B．Argumentation.C．Expos

He drafted a standard letter to the editor

Letters to the editor enable readers of a medical