_____ 56 weeks of age, mice were sacrificed _____ ether euthanasia.
At...under
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.
内容
- 0
How long were they on vacation? A: ten days B: two weeks C: a month D: three weeks
- 1
The mice were eating bread ______. A: on the table B: on the plate C: in the basket D: on the floor
- 2
The people of the Golden Age were created by （ ）.
- 3
The scientists _____ the behavior of the mice after they were given the drug. A: gained B: caused C: achieved D: observed
- 4
In 2007, of Americans age 18 and over were married.