单选题
{{B}} Directions: For each blank in the following
passage, choose the best answer from the choices givenbelow. Mark your answer on
the ANSWER SHEET by drawing with a pencil a short bar acrossthe corresponding
letter in the brackets.{{/B}} Science textbooks and
technical and professional journals are usually made up of several partsand
contain various special features, many of which have a standard
format. {{U}} 31 {{/U}}usually contain a large number
of these parts; journals and{{U}} 32 {{/U}}contain many, butnot
all of them. Knowing where to look for information and{{U}}
33 {{/U}}to expect in a book can greatly increase yourability to use all the
information there. Explanations of and practice using some of these textbook
partsand{{U}} 34 {{/U}}are covered in these even numbered lessons. The
features in textbooks are{{U}} 35 {{/U}}into thefollowing three
categories. Front matter is the{{U}} 36 {{/U}}-numeral paginated section
at the front of mostBooks. The text is the main Body of the Book. The{{U}}
37 {{/U}}matter comprises the additional sections at theback of most
books.{{U}} 38 {{/U}}our discussion of these three sections will deal
mainly with textbooks, thepractice provided will greatly{{U}} 39
{{/U}}your comprehension of scientific{{U}} 40 {{/U}}as well.