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【简答题】
A: Hi, Li Jun. You were not at school yesterday. 56 B: Oh, I had a headache and I had to ask for a sick leave. A: Sorry to hear that. 57 B: Yes, my mother took me to the hospital. A: 58 B: The doctor checked me over and said I had a cold. A 59 B: Yes, a little. The doctor told me to take the medicine three times a day and have plenty of water. A: 60 B: Yeh. Thank you. A; You’re welcome.
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举一反三
【单选题】下面关于抽象类定义合法的是( )
A.
class Animal { abstract void grow(); }
B.
abstract Animal { abstract void grow(); }
C.
class abstract Animal { abstract void grow(); }
D.
abstract class Animal { abstract void grow(); }
【简答题】Two heads are better than one .
【简答题】世界是物质的，物质是变化的．下列属于物理变化的是（ ） A．冰雪融化 B．钢铁生锈 C．牛奶变酸 D．食物腐败
【简答题】Two heads are better than one.
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