添加剂
参考答案:
加入镀液中能改进镀液的电化学性能和改善镀层质量的少量添加物。
句型转换。
1. I like playing football, but I don't like basketball.( 改为同义句 )
I_______ playing football ________playing basketball.
2. Li Ming takes the first place in the 100-meter race.( 改为同义句 )
Li Ming ________the 100-meter race.
3. This film isn't interesting, I think.( 改为同义句 )
I ________think this film is_________ .
4. I want to be a basketball player.( 对划线部分提问 )
___________________________________
5. I come here because I have something new to tell you. ( 对划线部分提问 )
____________________________________
圆形贮液池顶、底板厚度一般不应小于()。
A、80mm
B、100mm
C、120mm
D、150mm