题目内容

Crane and lifting systems _______________.

A. They are needed to rapair the semi-trailers.
B. They are used when painting the semi-trailers.
C. This is where the logos are painted.

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A. The spare parts are purchased.
B. The spare parts are made in the factory.
C. There is a spare parts store in the factory.

A. 发音简单,易学易记,有利于提高学生的学习兴趣;
B. 可以独立成为音节,是学习声调的最好工具;
C. 可以从学声母起就用单韵母来和声母拼合成最简单的两拼音,从而开始出现拼音方法的学习。
D. 是学习复鼻韵母的基础;

A. 认识调形;
B. 带韵母读声调;
C. 借助手势练读;
D. 在大量练习中熟练;