【简答题】Page seems to believe that [A]the gene loss of Y chromosome is sure andfast. [B]thegene loss of Y chromosome is quite slow. [C]the Y chromosome is facin9“imminentdemise”. [D]the Y chromosome will be r...
【简答题】听问句,选出合适的答语。 ( ) 1. A. Sure. ( ) 2. A. They're boots. ( ) 3. A. No, it's not mine. ( ) 4. A. Yes, it is. ( ) 5. A. She's wearing a hat. B. It's a shirt. B. It's a hat. B. It's my h...