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【单选题】
如果把一个二极管直接同一个电动势为 1.5V 、内阻为 0 的电池正向连接,则该管 ( ) 。A.
电流为0
B.
电流过大管子击穿
C.
正常导通
D.
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举一反三
【简答题】Try to descri be n ursing care of diabetes insulin therapy .
【简答题】Study the following photos carefully and write an essay in which you should 1) describe the photos briefly, 2) interpret the social phenomenon reflected by them, and then 3) give your point of view. Y...
【单选题】According to the 1994 Group, the variation in fees between institutions can be best described as______.
A.
great
B.
little
C.
not large
D.
not mentioned
【简答题】The people below are looking for someplace to enjoy some entertainments in Beijing. After the description of these people, there is information about places A — F. Decide which place would be the most...
【单选题】The main purpose of the passage is to _________________.
A.
present an original idea
B.
describe a new process
C.
argue against an established practice
D.
comment on a skill and its techniques
【单选题】下列关于腺泡细胞癌临床表现的描述，正确的是
A.
发病无年龄差异
B.
肿瘤主要发生于颌下腺
C.
女性发病为男性的2~3倍
D.
临床表现与多形性腺瘤相似，但触之较硬
E.
临床上绝大多数无疼痛及消长史
【简答题】Write an essay based on the following diagram. In your writing, you should 1) describe the diagram, and 2) give your comments. You should write about 150 words.
【单选题】下列关于CD2分子的描述，正确的有
A.
CD2分子表达于胸腺细胞、B细胞和NK细胞
B.
增强T细胞与APC或靶细胞之间的黏附
C.
与信号介导无关
D.
促进B细胞对抗原的识别
E.
其配体主要是CD28
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