在苯和它的衍生物中，由于侧链与苯环间的相互影响，从而使它们在性质上都发生了一些变

源限距的描述正确的是（）

A.放射源中心到体表皮肤照射中心的距离

B.放射源中心到体内肿瘤所参考点的距离

C.放射源中心到机架旋转中心的距离

D.放射源到限光筒准直器底面的距离

E.体表照射中心到体内肿瘤所参考点的距离

阅读理解。

     A scientist turns out to be able to see the future by offering each of some four-year-olds a piece of candy

and watching how he or she deals with it. Some children reach eagerly for the treat they see. Some last a few

minutes before they give in. But others are determined to wait until the last moment.

     By the time the children reach high school, something remarkable has happened. A survey found that those

who as four-year-olds had enough self-control to hold out generally grew up to be more popular, adventurous,

confident and dependable. The children who gave in to temptation (诱惑) early on were more likely to be lonely,

easily frustrated (沮丧) and inflexible (固守己见的).

     Actually, the ability to delay reward is a sign of emotional intelligence which doesn't show up on an IQ test. 

     The hardware of the brain and the software of the mind have long been scientists' concerns. But brain

theory can't explain what we wonder about most, like the question why some people remain upbeat in the face

of troubles that would sink a less resistant soul.

     Here comes the theory of Daniel Coleman, writer of Emotional Intelligence: when it comes to predicting

people's success, brain ability as measured by IQ may actually matter less than the qualities of mind once

thought of as "character".

     EQ is not the opposite of IQ. What researchers have been trying to understand is how they work together;

how one's ability to handle stress, for instance, affects the ability to concentrate and put intelligence to use.

Among the ingredients (要素) for success, researchers now generally agree that IQ counts for about 20%; the

rest depends on everything from social class to luck.

     While many researchers in this relatively new field are glad to see emotional issues finally taken seriously,

some few fear EQ invites misuse.

1. The experiment with the four-year-olds makes it clear that _____.

A. the age of 4 is a proper time for scientific experiment

B. emotional intelligence won't show up until adolescence

C. the ability of self-control plays a role in personal success

D. candy can be used to measure a person's emotional intelligence

2. Which of the following is true of EQ and IQ according to the text?

A. The higher a person's EQ is, the higher his or her IQ is.

B. The higher a person's IQ is, the higher his or her EQ is.

C. Some people can be blessed with lots of both, but some with little of either.

D. Scientists have already discovered the way in which EQ and IQ work together.

3. The underlined word "upbeat" in Paragraph 4 probably means _____.

A. kind

B. floating

C. excited

D. optimistic

4. Why does the author mention the experiment at the beginning of the text?

A. To amuse both the children and readers.

B. To prove the scientist's wisdom.

C. To introduce the topic of the text.

D. To show us how to do an IQ test.

5. What is most likely to be written in the paragraph that follows?

A. Information about famous people with high EQ.

B. Examples showing the opposite voice about EQ.

C. Some reasons why EQ is a relatively new field.

D. Strong demand for basic emotional education.

乌日，男，蒙古族，56岁，原任内蒙古自治区某研究所所长。2005年，乌日多次利用职务之便，将掌握的国家秘密文件非法倒卖给境外组织，情节较轻。

侦查过程中，乌日以自己不会说汉语为由，拒绝了律师的辩护，同时也拒绝回答侦查人员的讯问，则下列说法错误的有：（）

A.侦查机关有义务为乌日请一位汉语翻译，以保障侦查的进行

B.乌日不能拒绝律师的辩护，从而放弃行使辩护权

C.本案的侦查人员应当采用蒙古族语言进行讯问

D.乌日有"如实供述"的义务

DVOR全向信标载波振荡器中晶体的谐振频率为信标台（）

A.工作频率

B.工作频率的一半

C.工作频率的1/4

D.工作频率的1/12

关于对SQL对象的操作权限描述正确的是（）

A.权限的种类分为INSERT、DELETE和UPDATE这3种

B.权限只能用于实表不能应用于视图

C.使用REVOKE语句获得权限

D.使用COMMIT语句赋予权限