【简答题】We do not often consider how much energy goes into creating comforts like hot showers and cold beer. A more efficient refrigerator will give us the same cold beer while using less energy. A more water...
【简答题】给问句选择适当的答句。 ( ) 1. Is your mother a waitress? ( ) 2. Is your father a cashier? ( ) 3. What do you like to do? ( ) 4. Who is your sister? A. Jenny. B. I like to go for a walk. C. Yes, h...