The optimal temperature of preserving virus strain is ()
A: -70℃
B: -20℃
C: 4℃
D: room temperature
E: 37℃
A: -70℃
B: -20℃
C: 4℃
D: room temperature
E: 37℃
举一反三
- The<br/>optimal temperature of preserving virus stain is () A: -70℃ B: -20℃ C: 4℃ D: room<br/>temperature E: none<br/>of the above
- Which of the following temperature is better for cell thawing after cryopreservation? A: 37℃ B: 4℃ C: -196℃ D: -20℃ E: -80℃ F: Room temperature.
- The main reason why air-conditioner indoor machines can have multiple colors is A: The difference in emissivity of different colors paints at room temperature is small B: The emissivity of different colors paints varies greatly at room temperature C: The absorptance of different colors paints to visible light is quite different at room temperature D: The difference in the absorptance of different colors paint to visible light at room temperature is small
- after the guests left,the temperature in the room suddenly
- The optimal water temperature when we bathe dogs in spring is A: 30℃ B: 32℃ C: 34℃ D: 36℃