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问题
选择题
下图所示四枚圆形方孔钱中，应属于汉武帝时期的是
A
B
C
D
[ ]
A．A
B．B
C．C
D．D
答案
答案：
C
补全对话，情景问答
给下列的问句选择合适的答语。
( ) 1. Where are you from?
( ) 2. Who's this man?
( ) 3. Who's that woman?
( ) 4. This is my friend.
A. He's my father.
B. Nice to meet you.
C. I'm from China.
D. She's my mother.
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问答题 简答题
对葡萄根瘤蚜与苹果绵蚜进行产地检疫或疫情调查，何时为最佳时期？
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