_____ 56 weeks of age, mice were sacrificed _____ ether euthanasia.
举一反三
- The fetal lungs are capable of breathing after ( ). A: 20 weeks' gestational age B: 24 weeks' gestational age C: 28 weeks' gestational age D: 32 weeks' gestational age E: 16 weeks' gestational age
- The Argonauts gathered at Pagasae, where they sacrificed to（ ）. The omens were good.
- The best age to crop the ears of a Boxer is () A: 7 to 8 weeks old B: 9<br/>to 10 weeks old C: 11 to 12 weeks old D: 13 to 14 weeks old
- The mice with cherry red skin were ( ) A: Hypoxic rats B: carbon monoxide poisoning C: sodium nitrite poisoning D: Potassium cyanide poisoning mice E: normal mice
- However, when the mice were well-fed but thirsty, they opted to ___________, according to the study.