【简答题】She has finished her homework . ?
【判断题】面积归一化法只能适用于检测器对所有组分均有响应的情况。
【简答题】She has already finished her homework.( 一般疑问句 ) ______ she finished her homework ______?
【简答题】She has already finished her homework.( 一般疑问句 ) ______ she finished her homework ______?
【判断题】She has finished her lunch, but she hasn't washed her bowls.
【简答题】A.She has half finished filling out the form. B.She doesn't remember to fill out the form. C.She is glad that the man might help her. D.She feels frustrated about filling out the form.
【判断题】安全电压二次回路的可导电部分不应连接到大地或其他保护导体。( )
【判断题】公称直径小于外径大于内径的一种规格的表示。
【判断题】即使强度级别相差很大的钢筋,弹性模量却很接近,而且强度高的钢筋,弹性模量反而偏低。
【简答题】She (write) letters all afternoon and she has not finished yet.