How long is it between two pregnancies of the panda?
举一反三
- How long is the man's layover between flights?（ ）
- About how long does it take to do the experiment A: Just five minutes. B: Slightly less than an hour. C: Between one and two hours. D: A little more than two hours.
- --How long will you stay there? A: Two dollars. B: Two days. C: Two miles. D: Two kilograms.
- They discussed how to _____cooperation between the two countries.</p></p>
- How long will the man stay in the hotel？（） A: For two days. B: For two nights. C: For two hours. D: For two weeks.