不符合感染临床特征的是（） A.疖是单个毛囊及其所属皮脂腺的急性化脓性炎症 B.痈是

参与特异性免疫的免疫细胞是（）

A.吞噬细胞

B.淋巴细胞

C.单核细胞

D.NK细胞

E.T细胞、B细胞和APC

某外籍个2008年1月1日来华执教于境内的某大学，2008年1月26口离境，该外籍个人境内居住天数、境内工作天数分别为( )。

A．26天、25天

B．16天、26天

C．25天、26天

D．15天、24天

与公孙穴相通的奇经是（）

A.冲脉

B.带脉

C.阴维脉

D.阴跷脉

E.任脉

控制狗的皮毛中色素分布的等位基因有三个，分别是A和a1、a2。A使暗色素在全身均匀分布产生暗色狗，等位基因a1降低了色素的沉积程度，产生沙色狗；等位基因a2使沙色和暗色相间分布产生斑点狗。显性的顺序是A＞a1＞a2。根据右面系谱图分析回答：

Ⅱ3和Ⅱ4交配产生后代的表现型及比例为（）

The worst thing about television and radio is that they entertain us, saving us the trouble of entertaining ourselves.

Which of the following is NOT the reason for the decline in amateur singing
A. It is easier for people to please themselves with songs through TV and radio.
B. Amateurs feel embarrassed for they cannot sing as well as the professionals.
C. People don’t want to take the trouble to sing songs themselves.
D. Famous and talented musicians can easily be met.

A hundred years ago, before all these devices were invented, if a person wanted to entertain himself with a song or a piece of music, he would have to do the singing himself or pick up a violin and play it. Now, all he has to do is turn on the radio or TV. As a result, singing and music have declined.
Italians used to sing all the time. Now, they only do it in Hollywood movies, Indian movies are mostly a series of songs and dances trapped around silly stories. As a result, they don’t do much singing in Indian villages anymore. Indeed, ever since radio first came to life, there has been a terrible decline in amateur (业余的) singing throughout the world.
There are two reasons for this sad decline. One, human beings are astonishingly lazy. Put a lift in a building, and people would rather take it than climb even two flights of steps. Similarly, invent a machine that sings, and people would rather let the machine sing than sing themselves. The other reason is that people are easily embarrassed. When there is a famous, talented musician readily available by pushing a button, which amateur violinist or pianist would want to try to entertain family or friends by himself
These earnest reflections came to me recently when two CDs arrived in the mail. They are historic recordings of famous writers reading their own works. It was thrilling to hear the voices from a long dead past in the late 19th century. But today, reading out loud anything is no longer common. Today, we sing songs to our children until they are about two, we read simple books to them till they are about five, and once they have learnt to read themselves, we become deaf. We’re alive only to the sound of the TV and the stereo (立体声音响).
I count myself extremely lucky to have been born before TV became so common: I was about six before TV appeared. To keep us entertained my mother had to do a good deal of singing and tell us endless tales. It was the same in many other homes. People spoke a language; they sang it, they recited it; it was something they could feel.
Professional actors’ performance is extraordinarily revealing. But I still prefer my own reading, because it’s mine. For the same reason, people find karaoke (卡拉OK) liberating. It is almost the only electronic thing that gives them back their own voice. Even if their voices are hopelessly out of tune, at least it is meaningful self-entertainment.