下列不属于卵巢内胚窦瘤的特点的是()。 A.恶性程度低,预后好 B.血清AFP明显升

题型:单项选择题 A1/A2型题

问题:

下列不属于卵巢内胚窦瘤的特点的是()。

A.恶性程度低,预后好

B.血清AFP明显升高

C.BEP是有效的化疗方案

D.国内发病率居首位

E.常以急腹症为首发症状

考点:肿瘤放射治疗学主治医师专业知识(综合练习)专业知识(综合练习)题库
题型:单项选择题 A1/A2型题

如图是呼吸系统的组成示意图,下列关于呼吸系统的组成和功能叙述正确的是(  )

A.①是鼻腔,分泌的黏液就是“痰液”

B.②是气管

C.③既是食物的通道,又是空气的通道

D.⑥是呼吸系统的主要器官

题型:单项选择题 A1/A2型题

材料一优化能源结构,发展新能源产业是我国“十二五”规划纲要提出的重要任务,其中包括高效发展核电。据资料,1公斤核燃料铀-235裂变释放的能量相当于2700吨标准煤燃烧释放的能量;与风电、太阳能等新能源相比,核电基本不受风、阳光等自然条件的影响;核电站不排放有害气体和烟尘,其一年产生的二氧化碳,是同等规模火电站排放量的1.6%;我国目前已建成13台核电机组,电价普遍低于当地标杆电价;2010年,全球发电总量中核电占16%,我国发电总量中核电占2%。据预测,到2015年,我国社会用电量将达6.27万亿千瓦时,年均增长率约为8.5%。

材料二安全是核电发展的前提和最高原则。从三里岛和切尔诺贝利核事故的伤痛,到日本福岛核泄漏的阴霾,一次次引发全球对核电安全的高度关注和重视,各国依据核电发展的客观规律和特殊要求,不断反思核电安全标准,检查核电安全建设,完善核电安全措施与技术体系,以推动核电安全日臻完善。

(1)结合材料一,运用经济常识,分析核电在我国能源结构中的比较优势。

________________________________________________________________________________________________________________________________________________________________________________________

(2)联系材料二,从认识论角度,说明人类在发展核电过程中应怎样确保安全。

________________________________________________________________________________________________________________________________________________________________________________________

题型:单项选择题 A1/A2型题

体循环起始于

A.全身毛细血管

B.右心房

C.右心室

D.左心房

E.左心室

题型:单项选择题 A1/A2型题

In this century the traditional American family is constantly faced with the threat of breakdown. Some sociologists suggest that one little-noticed cause may be the introduction of the TV dinner.

Before the appearance of television sets, the American dinner was a big event for the family. In many homes, dinner time may be the only time when everyone got together. A typical dinner was usually in three stages. In the preparation stage, the children and Father frequently helped with setting while Mother put the last touches on the roast. In the eating stage, family members shared the day's experiences and more than food was eaten. In this stage families got to know one another and made joint decisions around the dinner table, and thus the family unit was strengthened. In the cleaning-up stage, children or Father again gave their hands, so that their importance to the home community was clear. Unfortunately, all of these have been removed by a product---the television set.

By the beginning of the 1980s, the typical American family dinner was just twenty minutes long. The speed-up of the once-leisurely experiences is clearly connected to the pace of modern life and maybe a model of the modern life is the TV dinners --- meals designed to be eaten from the beginning to the end of a half-hour program. The once family affair has now become nothing more than the use of a fork and knife.

64. The underlined word in the second paragraph can be replaced by ____.

A. big             B. important             C. combined      D. separate

65. In the past, Americans tended to ____.

A. spend more time eating their food at dinner table

B. eat more food than they have today

C. spend more time talking about their day's experiences at dinner table

D. talk so much that they forgot to eat

66. The shortening of the dinner time in America is related to ____.

A. the TV programs                    B. the pace of modern life

C. the wide use of electrical equipment    D. the popularity of fast food

67. The best title for this passage might be ____.

A. Talk at Dinner Table                  B. TV Dinner

C. Pace of Modern Life                        D. Problems Caused by TV

题型:单项选择题 A1/A2型题

年龄大一些的学生自控能力强,可以收藏、使用管制刀具。()

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