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问题 单项选择题

经济周期指的是经济活动水平的交替增长和下降，持续时间通常为( )年，它以大多数经济部门的扩张或收缩为标志。

A．1～5

B．2～10

C．3～15

D．5～15

答案

参考答案：A

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词汇运用

     Do you know Hello Kitty? Children all over the __1__ (世界) all like her. She is a __2_ (可爱的)

girl. She__3_ (居住)in London, so she can speak English. There are__4__ (四) people in her family.

They are her mother, her _5__ (爸爸) and her sister. Her mother loves __6__ (煮) and she likes

making friends. A_7__ (狗) named Judy is her friend. Her favorite subject is__8__ (音乐). Look! It is

a __9_ (晴朗的) day. She is playing the __10_ (钢琴) in the park. She wants to be a pianist.

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单项选择题

双侧乳腺结节感，月经前胀痛，月经来潮后缓解。应首先考虑为（）。

A.急性乳腺炎

B.乳腺增生

C.乳腺纤维腺瘤

D.乳腺叶状肿瘤

E.乳腺癌
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