树突状细胞(DC)发挥抗肿瘤作用的具体机制包括()。 A.直接杀伤肿瘤细胞 B.抗原

题型:多项选择题

问题:

树突状细胞(DC)发挥抗肿瘤作用的具体机制包括()。

A.直接杀伤肿瘤细胞

B.抗原呈递

C.活化B淋巴细胞

D.活化T淋巴细胞

E.分泌细胞因子

考点:肿瘤学(医学高级)放射肿瘤治疗放射肿瘤治疗题库
题型:多项选择题

某项目经理部质检员对正在施工的砖砌体进行了检查,并对水平灰缝厚度进行了统计,下列符合规范规定的数据有()mm。

A.7 

B.9 

C.10 

D.12 

E.15 

题型:多项选择题

【真题试题】 (2010年单项选择第26题) 某公司只生产和销售一种产品。本月共销售产品1万件,取得销售收入30万元。共发生变动成本24万元。固定成本4.2万元。据此,本月该产品在盈亏平衡点的销售量应为()。

A.5000件

B.6000件

C.7000件

D.8000件

题型:多项选择题

信息匹配。请阅读下列旅游景点的信息,并按照要求匹配信息。

A. Leigongshan Nature Reserve (保护区)

     Located 15 kilometres east of Kaili, Guizhou Province, Leigongshan is the most fascinating scenic area

of the Miaoling Mountains. It gained its reputation as a National Nature Reserve because of its abundance

of overlapping (与……重叠) mountain ridges, flourishing verdant plants, valuable and rare animals, and

historical war remams.

B. Wuyi Mountain

     The Wuyi Mountain is situated in the middle of the Wuyi Mountain range. The Nine Twist Stream, a

meandering brook running 9 kilometres through the mountain, has been designated as a key national scenic

spot. A great many scholars and poets like Zhu Xi, Lu You and Xin Qiji visited and lectured here. As a

result, a valuable cultural heritage (遗产) has been preserved (保存, 保护).

C. Hengshan Mountain (South Mountain)

     There are five sacred mountains in China, among which Hengshan Mountain in Hunan is the most famous

for its natural scenery. It has 72 peaks and extends 150 kilometres, with 800 miles in cir curnference. The

mountain consists of 72 peaks. It runs 150 kilometres in extend, and possesses the reputation of Buddhism

and Taoist culture of China.

D. Mountain Tai

     Mountain Tai is the first mountain in the 5 high mountains. It lies in the middle of Shandong Province.

There are 4 natural remarkable spectacles. They are sunrise, sunset glow, cloudy sea and yellow river. The

pines and cypresses on the mountain still stand firmly. Their branches and leaves heap up a lot of snow,

which shine brightly under the sunshine.

E. Luoxiao Mountain

     Luoxiao Mountain lies on the border between Hunan Province and Jiangxi Province. It is where China's

revolution started. High peaks and thick forests contribute to making the mountain quite steep. Luoxiao

Mountain is rich in natural resources with a forest coverage rate of 64%. More than 3,800 different plants

grow here, including over 30 rare tree species and over 20 rare animal species.

F. Mt. Huangshan

     Mt. Huangshan is bound to be one of the most visited tourist destinations in the 21st century. Old residences,

archways, clan temples, ancient bridges and pagodas (宝塔) are abundant. Mt. Huangshan is famous for the

uniquely shaped pines, the fantastic rock peaks, the sea of clouds and the hot springs. The mystic clouds drift

in and out, changing the scenery from minute to minute.

请阅读下面5个人的特点,然后将他们与想去的旅游景点匹配起来。

( )1. Peter intends to go to a famous mountain for a holiday. As he is into Chinese classical literature and

works, he is sure to consider something like that when he chooses a mountain to visit.

( )2. Jacky is from Australia. He has never been to a really high mountain before. So he is eager to visit a

famous Chinese mountain. Jacky particularly enjoys the beautiful scenery on the top of a mountain in the early

morning watching the sun rising.

( )3. Susan is a university student in LA. She has just got a holiday, but as she is doing a research on how

religion or ancient Chinese doctrines have influenced Chinese people, she will not lose any chance for her

research.

( )4. Smith, a German exchange student, extremely adores Chairman Mao Zedong. He is told that if he visits

the mountain he can feel the beginning of Chairman Mao Zedong's revolutionary cause, otherwise he will feel

regretful in his later life if he misses it. 

( )5. George is 8 photographer from a Canadian journal. He likes to take pictures of remarkable scenery,

especially the lightning in a thunder storm and the change of clouds. It is said that he can make it in a well-

known mountain

题型:多项选择题

在胚胎的面部生长发育中,以下哪些描述是错误的().

A.面部是由额突和第一腮弓共同生长发育而成的

B.面部是由两个下颌突、两个上颌突、两个侧鼻突和一个中鼻突共同生长发育而形成的

C.上颌突与下颌突融合后,一部分形成颊部,剩余部分形成口腔

D.上切牙部分的硬腭由口窝发育而来

E.上唇人中由中鼻突生长发育而形成

题型:多项选择题

经粪-口途径传播的病毒性肝炎是()

A.戊型肝炎

B.丁型肝炎

C.甲型肝炎

D.乙型肝炎

E.丙型肝炎

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