多囊卵巢综合征患者月经失调多表现为（） A.月经频发 B.月经量多 C.痛经 D.月

牛的体细胞内含有30对染色体，那么牛的生殖细胞含染色体数是(    )

A．30对

B．30条

C．15对

D．15条

如果某项无形资产包含的经济利益通过相关资产实现，则应将摊销金额计入其他业务成本。( )

关于幽门螺杆菌感染的根除治疗正确的是（）。

A.PPI或铋剂+2种抗生素7天疗法为一线治疗方案

B.PPI+铋剂+2种抗生素四联方案只能作为补救治疗方案

C.对多次治疗失败者可考虑停药一段时间再重新治疗

D.补救治疗时应尽量根据抗生素的耐药性选择合适的抗生素

E.抗生素耐药是治疗失败的主要原因

阅读下面的短文，然后按照要求写一篇150个词左右的英语短文。

Happiness cannot last forever and it may be due to everything from the weather to the size of your bank account.

We’re not suggesting that you can reach a permanent state called “happiness” and remain there. But there are many ways to get out of the path of anxiety, anger and sadness into a state of happiness once or even several throughout the day.

Practice mindfulness. Be in the moment. Instead of worrying about your family, focus on the here and now----the food, the company, and the conversation.

Laugh out loud. Researchers at the University of California Irvine, tested 16 men who all agreed they thought a certain videotape was funny. Half were told three days in advance they would watch it. They started experiencing biological changes right away. When they actually watched the video, their levels of stress hormones (激素) dropped significantly.

Make a list. There’s nothing like writing down your tasks to help you organize your thoughts and calm your anxiety. Checking off each item provides a great sense of fulfillment.

【写作内容】

1) 以约30词概括上面内容的要点；

然后以约120词就“快乐的方式”这个话题发表你的看法，包括以下要点：

①列举不同的人对快乐的看法；

②你不快乐的时候怎么办？

【写作要求】

可以使用实例或其他论述方法支持你的观点，也可以参照阅读材料的内容，但不得直接应用原文中的句子；

【标题自定】

编制洪水水文要素摘录表时，不论哪一种过程线的转折点或控制点，（）两项均应全部填表，不能空白。

A、水位、流量

B、水位、含沙量

C、流量、含沙量

D、时间、含沙量