多项选择题 What does Anna find when she is in her mom’s body? A、Meeting patients is boring and somewhat unbearable. B、Harry likes Anna and he has fun fighting with his sister. C、Mom’s fiancé Ryan is a loveable man for her mom. D、Rock music is exciting.
单项选择题 柠檬是柑果类落叶果树。 A、正确 B、错误
单项选择题 With free trade between two nations that are identical in every respect under increasing returns to scale model, the commodity specialized by every nation may result from ( )