【判断题】Directions: Write T (True) or F (False) for each of the statements according to the text. The author decided to do arithmetic for his grandma because he wanted her to quit smoking. ( )
【单选题】It's an ecological disaster with no [ ] anywhere else in the world.
【单选题】It's an ecological disaster with no ________ anywhere else in the world.
【判断题】鉴别性培养基是一类在成分中加有能与目的菌的无色代谢产物发生显色反应的指示剂,从而达到只须用肉眼辨别颜色就能方便地从近似菌落中找出目的菌菌落的培养基。
【简答题】一类在成分中加有能与目的菌的无色代谢产物发生显色反应的指示剂,从而达到只需用肉眼辨别就能方便的从近似菌落中找出目的菌菌落的培养基,称为 培 养基。
【单选题】在成分中加有能与目的菌的无色代谢产物发生显色反应的指示剂,从而达到只须用肉眼辨别颜色就能方便地从近似菌落中找到目的菌菌落的培养基称为()。
【简答题】My grandma can ’ t see anything _________ _ her glasses. (with , without )
【判断题】一类在成分中加有能与目的菌的无色代谢产物发生显色反应的指示剂,从而达到只需肉眼辨别颜色就能方便的从近似菌落中找出目的菌菌落的培养基,称为选择性培养基。