枳实的理气作用是（） A.破气 B.降气 C.纳气 D.疏肝 E.行气

已知等差数列{a_n}前15项的和S₁₅=30，则a₁+a₈+a₁₅=______．

1  It might understand more than you think． 

A dog named Rico recognizes the names of about 200 objects，say researchers in Germany．  2  Its word-1earning skills are as good as those of a parrot or chimpanzee．  

In one experiment，the researehers took all 200 items that Rico is supposed to know and divided them into 20 groups of 10 objects． 3 In the tests，Rico got 37 out of 40 commands right．As the dog couldn’t see anyone to get clues，the seientists believe Rico must understand the meanings of certain words．   

In another experiment，the scientists took one toy that Rico had never seen before and put it in a room with seven toys whose names the dog already knew． 4  .

The correct object was chosen in seven out of 10 tests．suggesting that the dog had worked out the answer by process of removing．A month 1ater，Rico remembered half of the new names，which is even more impressive．

5 Even if they do，they call’t talk back．Still．it wouldn’t hurt to sweet-talk your dog every now and then．You might just get a big，wet kiss in return!

A．The owner then told Rico to fetch the object，using a word the dog had never heard before．

B．Do dogs more understand us than some friends?

C．It’s hard to know if all dogs understand at least some of the words we say．

D．Be careful of what you say around your dog． E．The dog also appears to be able to learn new words．

F．Then the owner told the dog to go and fetch one of the items．

G．Rico is thought to be smarter than the average dog．

患者男性，59岁，因心绞痛常备硝酸甘油。

有关硝酸甘油的叙述错误的是（）

A.通常舌下给药，而不宜口服

B.使全身动脉舒张

C.使全身静脉舒张

D.降低外周阻力，但不加快心率

E.增加心肌缺血区血流灌注

中国学者王强在美国完成一项产品发明。2002年12月3日，王强在我国某学术研讨会上介绍了他的这项发明成果。2003年6月 16日，出席过这次研讨会的某研究所工程师张杰，将这项成果作为他自己的非职务发明，向中国专利局提出专利申请。2003年5月5日，王强以这项成果在美国提出专利申请。2004年4月28日，王强又以同一成果向中国专利局提出专利申请，同时提出要求优先权的书面声明，并提交有关文件。关于本案，以下意见中，哪一个是正确的

A．张杰申请在先，按照先申请原则，享有专利申请权

B．王强享有国外优先权，故专利申请权应届王强，其申请日为2003年5月5日

C．王强是中国人，不应享有国外优先权，但张杰不是真正的发明人，故专利申请权应属王强，其申请日应为2004年4月28日

D．王强的发明已丧失新颖性，应驳回双方的申请

下列关于项目风险的分解表述中，错误的一项是（）。

A．使风险识别具有较好的准确性，完整性和系统性

B．是风险识别的目标之一

C．根据项目风险的相互关系将其分解成若干个子系统

D．分解的程度足以使人们较为容易地识别出项目的风险