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【单选题】
男性, 30 岁,近期劳累突发畏寒,高热,右侧胸痛,咳嗽和深呼吸时加重,咳铁锈色痰。查体:体温 39 °C,急性病容,颜面潮红,口角有疱疹,右下肺可闻及支气管呼吸音。临床诊断为社区获得性肺炎,其最有可能的病原体是()
A.
肺炎链球菌
B.
肺炎支原体
C.
金黄色葡萄球菌
D.
肺炎克雷伯杆菌
E.
肺炎衣原体
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【单选题】You completely disagree with the opinions of a speaker. Which of the following expressions do you think is INAPPROPRIATE to help you in the situation?
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【单选题】镰刀形红细胞贫血病患者血红蛋白β链上第六位的谷氨酸被缬氨酸取代后，将产生哪种变化？（高阶）
A.
增加了异常血红蛋白的溶解度
B.
导致异常脱氧血红蛋白的解聚作用
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增加了异常血红蛋白向阳极移动的速度
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【多选题】镰刀形红细胞贫血病患者血红蛋白β-链上第六位的谷氨酸被缬氨酸取代后，将产生哪些变化
A.
在 pH 7.0 电泳时，增加了异常血红蛋白向阳极移动的速度
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导致异常脱氧血红蛋白的聚合作用
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增加了异常血红蛋白的溶解度
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【简答题】S1:There is a crossing traffic on our starboard beam,I'm altering the course to starboard side to cross her bow.S2:What will happen if she alters course to starboard? I'm afraid we will take a risk of...
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A.
He gets nervous very easily.
B.
He is not an experienced speaker.
C.
He hasn't prepared his speech well.
D.
He is afraid of speeches.
查看完整题目与答案
【单选题】A ________of an effective team is not afraid to question ineffective techniques or strategies. He or she is always trying to improve the team.
A.
thinker
B.
supporter
C.
challenger
D.
speaker
查看完整题目与答案
【单选题】You completely disagree with the opinions of a speaker. Which of the following expressions do you think is INAPPROPRIATE to help you in the situation?
A.
I’m afraid I can’t agree with you because ….
B.
I see what you mean, but ….
C.
I think we are digressing a little.
D.
I’m not absolutely sure about what you have said, but I’d suggest….
查看完整题目与答案
【单选题】镰刀形红细胞贫血病患者血红蛋白β链上第六位的谷氨酸被缬氨酸取代后，将产生哪种变化？（高阶）
A.
增加了异常血红蛋白的溶解度
B.
导致异常脱氧血红蛋白的解聚作用
C.
增加了异常血红蛋白向阳极移动的速度
D.
一级结构发生改变
查看完整题目与答案
【单选题】镰刀形红细胞贫血病患者血红蛋白β-链上第六位的谷氨酸被缬氨酸取代后,将产生哪些变化? 1 在pH7.0电泳时,增加了异常血红蛋白向阳极移动的速度 2 导致异常脱氧血红蛋白的聚合作用 3 增加了异常血红蛋白的溶解度 4 一级结构发生改变
A.
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B.
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C.
② ④
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查看完整题目与答案
【单选题】What message is the speaker trying to convey?
A.
Kids should learn not to be afraid of monsters.
B.
Informative speeches can save lives.
C.
Carelessness can result in tragedies.
D.
Firefighters play an important role in America.
查看完整题目与答案