厕浴间和有防水要求的楼板四周除门洞外，应作混凝土翻边，其高度不应小于（）mm。 A.

一物体自t=0时开始做直线运动，其速度图线如图所示。下列选项正确的是

A.在0 ～6s 内，物体离出发点最远为30m

B.在0 ～6s 内，物体经过的路程为40m

C.在0 ～4s 内，物体的平均速率为7.5m/s

D.5 ～6s 内，物体所受的合外力做负功

治疗虚劳脾胃阴虚者，应首选

A．玉女煎

B．益胃汤

C．沙参麦冬汤

D．麦门冬汤

E．一贯煎

古代西方人认为：男人的精子里有一个十分微小的人形，这个小的人形中还隐藏着另一个更小的人形，这样一个套着一个，每个小人形中都蕴含着另一个生命，以至无法计算。在传宗接代过程中，这个人形的“小精灵”从男人的身上钻进女人的子宫里，由女人的经血将“小精灵”养大，“十月怀胎，一朝分娩”，孩子便离开妈妈的身体，成为了一个独立的新人。                                         

(1)材料中关于精子的描述是不正确的，事实上，精子中并不存在人形“小精灵”，而是在精子的细胞核中含有遗传物质—____，它控制着人的生长发育。

(2)请在下图a，b处填上恰当的内容，完成人的生殖过程图解。      

(3)人的生殖方式为_____。一个卵细胞与含Y染色体的精子结合后，发育成的胎儿的性别是__________。

(4)人工流产是通过手术或使用药物的方式将早期胚胎从母体内清除，会对母体造成一系列伤害，甚至导致不孕或死亡，重要原因是人的胚胎发育主要在母体______中进行，在清除胚胎时，会对该部位造成损伤。

Every year in late April, students at Renmin University of China become the subjects of admiration and jealousy of their peers on other campuses in Beijing. Why? Because they get a week off in the middle of term, the so-called spring break.

“It’s been a unique tradition of our school for a decade,” said Wang Yueran, 20, a journalism major at Renmin University, who organized a weeklong trip to Sichuan with 12 classmates last year.

But having fun is just one dimension of the spring break. Field trips, voluntary work, and social projects are all on students’ to-do lists. Experts say the spring break is not just for students to enjoy a few days off, but for them to gain new experiences beyond the campus walls.

Push them out

The traditional Chinese belief of the exploration of knowledge and truth emphasizes “reading 10,000 books and traveling 10,000 miles”, which indicates the importance of experience as much as theory. But while Chinese universities have the tradition of spring outings, what’s the benefit of making spring break an institution?

Qin Jianguo, of the student affairs office at Shenzhen University, thinks the idea of the spring break in some universities in China comes from the intention of pushing students out of the ivory tower to experience more diversity in their lives.

“Take traveling for example. A week traveling is a very different experience to a one- or two-day outing,” said Qin. “Students are expected to acquire the spirit of teamwork and compromise, and learn survival and communication skills when put out there in an unfamiliar context.”

Diverse approaches

Many countries have similar vacations in the middle of the semester for students to do things out of their own interest. Taking Japan as an example, instead of partying like their US counterparts, many Japanese students choose to work as interns or engage in study-related projects.

“The spring break is an opportunity for many of our students to put their learning to use,” said Hiroshi Kanno, dean of the Graduate School of International Corporate Strategy at Hitotsubashi University, in the school’s description of a recent spring break project.

As for Chinese students who take a week off around the Labor Day holiday, many tend to do volunteer work. Duan Zhipeng, a 22-year-old economics major at Renmin University, applied for a project to go back to his hometown in Jiangxi province to introduce his university’s enrollment policies and campus culture to local high school students.

Not a trend yet

Apart from Renmin University, only a few other universities, such as Yantai University, have a spring break for their students. The concept in China is still far from the culture and norms built around it in the US.

Wei Xiang, a professor specializing in holiday economics at Beijing International Studies University, said that the spring break is a good experiment for universities to make study schedules smoother in order to give students more options to arrange their own leisure and study activities.

小题1:According to the text, up to now, Apart from Renmin University, which University has a spring break for their students. 

A．Yantai University

B．Peking University

C．Suzhou University

D．Nankai University小题2:The underlined word “it” refers to ______

A．field trips

B．exploration of knowledge

C．spring break

D．ivory tower小题3:According to the passage,why do the students in the other universities admire the students at Renmin University?

A．Because they tend to do volunteer work.

B．Because they go home to meet their relatives.

C．Because they get a spring break.

D．Because they have lesser courses .小题4:Which of the following is the best title?

A．Reading 10,000 books and traveling 10,000 miles

B．Spring break expands horizons

C．Enjoy yourselves

D．A weeklong trip小题5:Which of the following is Not true according to the passage?

A．Spring break can help students to gain new experiences beyond the campus walls.

B．Students are expected to acquire the spirit of teamwork through pring break.

C．Spring break can help students tolearn survival and communication skills when in an unfamiliar context.

D．Spring break is not common in the US.

喉癌的发生（）

A.以声带癌居多，声门上型癌次之，声门下型癌极少见

B.以声带癌居多，声门下型癌次之，声门上型癌极少见

C.以声门上型癌居多，声带癌次之，声门下型癌极少见

D.以声门上型癌居多，声门下型癌次之，声带癌极少见

E.以声门下型癌居多，声门上型癌次之，声带癌极少见