The
optimal temperature of preserving virus stain is ()
A: -70℃
B: -20℃
C: 4℃
D: room
temperature
E: none
of the above
optimal temperature of preserving virus stain is ()
A: -70℃
B: -20℃
C: 4℃
D: room
temperature
E: none
of the above
举一反三
- The optimal temperature of preserving virus strain is () A: -70℃ B: -20℃ C: 4℃ D: room temperature E: 37℃
- Which process results in the increase in entropy of the<br/>universe? ( ) A: the cooling of a hot cup of coffee in room temperature air B: the evaporation of water from a desk at room temperature C: the melting of snow above 0 °C D: all of the above
- Which<br/>of the following virus is complex symmetry () A: bacteriophage B: herpesvirus C: hantavirus D: HIV E: none of the above
- You must check the<br/>temperature of hot food that is being held with temperature control<br/>at least every 6 hours.(<br/>)
- Which of the following fluorides has the lowest solubility in water<br/>at room temperature? ( ) A: LiF B: NaF C: KF D: CsF