有一份试题，某学生第一次测验得90分，一个月后再测还得90分。说明这份试题有很高的（ ）。

(单选题)《万壑松风图》是南宋（ ）的作品。 (单选题)黄河流域半坡类型彩陶纹饰出现最多的是（ ）。 (单选题)What is the writer trying to do in this passage? (单选题)The meaning of the underlined word “mature” in the passage i (单选题)Dennis’s example shows that successful people should _______ (单选题)From the story we know that the butterfly can’t fly because (单选题)Which sentence should go in the empty box in the last paragr (单选题)The first “it” in Paragraph 3 refers to（指的是）______. (单选题)What does the article mainly talk about？ (单选题)Sweet potatoes are good to people because they are rich in _