单项选择题Paul attends very meetings,and when he does,he has very to say.
单项选择题It’s badfor a man to smoke in public places where smoking is not allowed.
单项选择题()根据“两难故事法”的实验形成了儿童道德发展的理论。
单项选择题各种类型的测验被广泛运用于教育教学之中,这是在教育心理学的()。
单项选择题The company hopes to sell these machines.