黏附分子也是一类具有免疫调节活性的分子，黏附分子家族庞大，目前发现的黏附分子基因有近百种，常见的黏附分子有ICAM,VCAM,E-选择素,白细胞内皮细胞黏附分子-1,P-选择素和上皮黏蛋白等。
这些细胞黏附分子中，参与淋巴细胞和血小板沿血管壁的滚动，从而间接介导淋巴细胞和T淋巴细胞在HEV归巢的是
A:ICAM B:P-选择素 C:VCAM D:E-选择素 E:白细胞内皮细胞黏附分子-1 F:上皮黏蛋白
Outside-the-classroom Learning Makes a Big Difference
Putting a bunch of college students in charge of a $300,000 Dance Marathon, fundraiser surely sounds a bit risky 1.When you consider the fact that the money is supposed to be given to children in need of medical care, you might call the idea crazy.
Most student leaders don"t want to spend a large amount of time on something they care little about, said 22-year-old UniversityofFloridastudent Darren Heitner. He was the Dance Marathon"s operations officer for two years.
Yvonne Fangmeyer, director of the student organization office at theUniversityofWisconsin, conducted a survey in February of students involved in campus organizations 2. She said the desire for friendship was the most frequently cited reason for joining.
At large universities like Fangmeyer"s, which has more than 40,000 students, the students first of all want to find a way to "belong in their own corner of campus".
Katie Rowley, a Wisconsin senior, confirms the survey"s findings."I wanted to make the campus feel smaller by joining an organization where I could not only get involved on campus butalso find a group of friends."
All of this talk of friendship, however, does not mean that students aren"t thinking about their resumes. "I think that a lot of people do join to "fatten up their resume"", said Heitner."At the beginning of my college career, I joined a few of these organizations, hoping to get a start in my leadership roles."
But without passion student leaders can have a difficult time trying to weather the storms that come. For example, in April, several student organizations atWisconsinteamed up 3 for an event designed to educate students about homelessness and poverty. Student leaders had to face the problem of solving disagreements, moving the event because of rainy weather, and dealing with the university"s complicated bureaucracy.
"Outside-of the classroom learning really makes a big difference", Fangmeyer said.
词汇：
bunch /bʌntʃ/n．群
marathon /"mærə,θən/n．马拉松；耐力活动
fundraiser /"fʌnd"reizə/n．募捐
weather /"weðə(r)/v．经受风雨
bureaucracy /bju"rakrəsi/n．官僚机构
注释：
1.Putting a bunch of college students in charge of a $300,000 Dance Marathon, fundraiser surely sounds a bit risky．让一群大学生去负责募集30万美元的马拉松式的跳舞活动，这种募捐听起来肯定有点儿冒险。"putting... in charge of…”是“让……负责……”。
2.Yvonne Fangmeyer, director of the student organization office at theUniversityofWisconsin, conducted a survey in February of students involved in campus organizations. Yvonne Fangmeyer是威斯康星大学学生组织办公室主任，在2月组织了一次学生参加校园组织的调查。"a survey of students involved in campus organizations”太长了，所以“in February”插到了中间。
3. team up：参加。
An extracurricular activity like raising a fund of $300,000 is risky because most student leaders_________.
A:are lazy B:are stupid C:are not rich enough D:will not take an interest in it
Outside-the-classroom Learning Makes a Big Difference
Putting a bunch of college students in charge of a $300,000 Dance Marathon, fundraiser surely sounds a bit risky 1.When you consider the fact that the money is supposed to be given to children in need of medical care, you might call the idea crazy.
Most student leaders don"t want to spend a large amount of time on something they care little about, said 22-year-old UniversityofFloridastudent Darren Heitner. He was the Dance Marathon"s operations officer for two years.
Yvonne Fangmeyer, director of the student organization office at theUniversityofWisconsin, conducted a survey in February of students involved in campus organizations 2. She said the desire for friendship was the most frequently cited reason for joining.
At large universities like Fangmeyer"s, which has more than 40,000 students, the students first of all want to find a way to "belong in their own corner of campus".
Katie Rowley, a Wisconsin senior, confirms the survey"s findings."I wanted to make the campus feel smaller by joining an organization where I could not only get involved on campus butalso find a group of friends."
All of this talk of friendship, however, does not mean that students aren"t thinking about their resumes. "I think that a lot of people do join to "fatten up their resume"", said Heitner."At the beginning of my college career, I joined a few of these organizations, hoping to get a start in my leadership roles."
But without passion student leaders can have a difficult time trying to weather the storms that come. For example, in April, several student organizations atWisconsinteamed up 3 for an event designed to educate students about homelessness and poverty. Student leaders had to face the problem of solving disagreements, moving the event because of rainy weather, and dealing with the university"s complicated bureaucracy.
"Outside-of the classroom learning really makes a big difference", Fangmeyer said.
词汇：
bunch /bʌntʃ/n．群
marathon /"mærə,θən/n．马拉松；耐力活动
fundraiser /"fʌnd"reizə/n．募捐
weather /"weðə(r)/v．经受风雨
bureaucracy /bju"rakrəsi/n．官僚机构
注释：
1.Putting a bunch of college students in charge of a $300,000 Dance Marathon, fundraiser surely sounds a bit risky．让一群大学生去负责募集30万美元的马拉松式的跳舞活动，这种募捐听起来肯定有点儿冒险。"putting... in charge of…”是“让……负责……”。
2.Yvonne Fangmeyer, director of the student organization office at theUniversityofWisconsin, conducted a survey in February of students involved in campus organizations. Yvonne Fangmeyer是威斯康星大学学生组织办公室主任，在2月组织了一次学生参加校园组织的调查。"a survey of students involved in campus organizations”太长了，所以“in February”插到了中间。
3. team up：参加。
What do student leaders need to carry an activity through to a successful end? _________.
A:Passion B:Money C:Power D:Fame
ATP分子结构简式和10个ATP分子所具有的高能磷酸键数目分别是（）
A:A—P—P～P和10个 B:A—P～P～P和20个 C:A～P～P和20个 D:A～P～P～P和30个
下列有关ATP叙述中正确的是（）
A:ATP的分子简式是A—P—P～P B:所有植物细胞中的ATP都是由叶绿体产生的 C:ATP的分子简式是A—P～P～P D:动物细胞中全部生命活动都离不开ATP
下列有关ATP叙述中正确的是（）
A:ATP的分子简式是A—P—P～P B:所有植物细胞中的ATP都是由叶绿体产生的 C:ATP的分子简式是A—P～P～P D:所有生物中全部生命活动都离不开ATP
ATP分子简式和10个ATP所具有的高能磷酸键数目分别是（）
A:A—P—P～P和10个 B:A～P～P和20个 C:A—P～P～P和20个 D:A～P～P～P和10
ATP分子简式和18个ATP所具有的高能磷酸键数目分别是（）
A:A—P—P～P和18个 B:A—P～P～P和36个 C:A～P～P和36个 D:A～P～P～P和56个
酶与ATP
