The IOWA TESTS OF BASIC SKILLS (ITBS) has 14 Levels. Each level of the ITBS pertains to an appropriate Grade Level of a United States student.
IOWA测验（基本语言能力测验）共分14级。每一级数皆是以美国当地学生的程度做为分级标准。
TEST BEST on the IOWA TESTS OF BASIC SKILLS Teacher's Edition and student Edition are booklets designed to help students get familiar with the question format on the IOWA TESTS OF BASIC SKILLS (ITBS).
IOWA测验练习本的学生用书和老师用书是设计来帮助考生熟悉IOWA测验的题型和考试模式。
TEST BEST on the IOWA TESTS OF BASIC SKILLS Teacher's Edition and student Edition are booklets designed to help students get familiar with the question format on the IOWA TESTS OF BASIC SKILLS (ITBS).
IOWA测验练习本的学生用书和老师用书是设计来帮助考生熟悉IOWA测验的题型和考试模式。
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