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【多选题】
关于慢性龈炎和龈增生,以下哪正确的A.
可长期单独存在而不发展为牙周炎
B.
沟内上皮的直接下方有一层中性粒细胞反应区
C.
病变的淋巴细胞反应B淋巴细胞浸润为主
D.
增生性龈炎多见于年轻女性
E.
长期服用苯妥英钠可引起牙龈增生
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举一反三
【单选题】What's the best title of this passage?
A.
Have Sympathy for the Poor
B.
The Poor are Wonderful
C.
Smile and Love
D.
Relieve Poverty
【单选题】Which of the following would be the best title of the text?
A.
Sounds Wonderful—The Science of Music
B.
Mission Impossible—The Mystery of Music
C.
Touching Always—The Power of Music
D.
Anti-Brutalization—The Effect of Music
【单选题】流体由l-1截面流入2-2截面的条件是
A.
gz 1 +p 1 ／ρ =gz 2 +p 2 ／ρ
B.
gz 1 +p 1 ／ρ +u 1 2 /2 >gz 2 +p 2 ／ρ +u 2 2 /2
C.
gz 1 +p 1 ／ρ 2 +p 2 ／ρ
D.
以上都不是
【单选题】Read the following concluding paragraph and decide the method it used. ( Title: Public Attitude toward Science ) ( Introduction ) Whether we like it or not, the world we live in has changed a great de...
A.
Suggest results or consequences
B.
Summarize the main points of the paper
C.
Call for some sort of action or make a recommendation
D.
End with a warning
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