单项选择题

● You will hear a conversation about quality control. ● For each question 23--30, mark one letter (A, B or C) for the correct answer. ● After you have listened once, replay the recording. How many are there quality control inspection points

A． three
B． four
C． five
<上一题 目录 下一题>
热门 试题

单项选择题
When does the plane take off
A． 4:25
B． 4:35
C． 4:45
单项选择题
A． to B． into C． for
A． to
B． into
C． for
相关试题