A: 75% ethanol
B: Ultraviolet light
C: Iodine tincture
D: Sodium hypochlorite
E: Heating under 100℃ for 20 minutes
举一反三
- Which of the following staining solution are used in the bacterial Gram staining method？ ( ) A: Crystal violet B: Iodine solution C: Ethanol D: Safranin
- Which of the following is NOT the training method that comes under behavioral methods?
- Which of the following type of lamp is used for heating a fuser？（） A: Xenon B: Halogen C: Incandescent D: Light Emitting Diode
- Which of the following methods can not treat hyperkalemia? A: Infusion of calcium gluconate B: Infusion of sodium bicarbonate C: Hemodialysis D: Large inventory of blood transfusion
- Which of following is the best choice for storage of extracted DNA sample: A: ultrapure water B: TE buffer C: 75% ethanol D: TBE buffer
内容
- 0
The most serious hypokalemia would occur in which of the following conditions? A: Decrease in potassium intake from 150 to 75 mEq/ day B: Increase in sodium intake from 100 to 200 mEq/ day C: Fourfold increase in aldosterone secretion plus high sodium intake D: Fourfold increase in aldosterone secretion plus low sodium intake
- 1
Which of the following chemicals should not be stored for more than one year, and if exposed to air, peroxides can form when exposed to light A: Ethanol B: Tetrahydrofura C: Ether D: Phenol
- 2
ultraviolet light
- 3
Which of the following compressions in the soil under loading cannot be ignored（） A: soil particles B: interparticle pore C: sealing gas D: water in the soil
- 4
The reagents used in bacterial Gram staining are ( ). A: Crystal violet B: Iodine solution C: Ethanol D: Safranine