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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
B.
导致异常脱氧血红蛋白的聚合作用
C.
增加了异常血红蛋白的溶解度
D.
一级结构发生改变
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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...
查看完整题目与答案
【简答题】Study how Speaker B responds to what Speaker A says. Focus on the words in italics A: it's good to hear that they're thinking of resuming diplomatic relations, isn't it? B: Yes. That’s great. Restorin...
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【单选题】W: Tom looks awfully nervous, doesn't he? M: Yes. I' m afraid he is not used to making speeches. 16. What do the two speakers think of Tom?
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.
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【单选题】以下关于继发性高血压病因的叙述，正确的是______。
A.
肾上腺疾病引起的高血压，主要是肾上腺激素释放不足引起的
B.
肾性高血压在继发性高血压中属不常见的一种
C.
妊娠高血压综合征的发生都是在妊娠以后
D.
肾血管性高血压主要是由于肾动脉狭窄引起肾素-血管紧张素-醛固酮系统激活而引起
E.
血管性高血压引起血压增高的血管病变常见的有主动脉瓣关闭不全、大动脉炎和动脉粥样硬化
查看完整题目与答案
【简答题】磨削钢制曲轴时,一般应选用( )。 [2分]
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】下述病变不属于肾血管性病变的是( )
A.
肾动脉狭窄
B.
肾动脉闭塞
C.
肾动脉瘤
D.
肾血管平滑肌脂肪瘤
E.
肾动脉壁钙化
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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?
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….
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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.
① ② ③
B.
① ③
C.
② ④
D.
④
E.
① ② ③ ④
查看完整题目与答案
相关题目：
【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
B.
导致异常脱氧血红蛋白的聚合作用
C.
增加了异常血红蛋白的溶解度
D.
一级结构发生改变
查看完整题目与答案
【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...
查看完整题目与答案
【简答题】Study how Speaker B responds to what Speaker A says. Focus on the words in italics A: it's good to hear that they're thinking of resuming diplomatic relations, isn't it? B: Yes. That’s great. Restorin...
查看完整题目与答案
【单选题】W: Tom looks awfully nervous, doesn't he? M: Yes. I' m afraid he is not used to making speeches. 16. What do the two speakers think of Tom?
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】以下关于继发性高血压病因的叙述，正确的是______。
A.
肾上腺疾病引起的高血压，主要是肾上腺激素释放不足引起的
B.
肾性高血压在继发性高血压中属不常见的一种
C.
妊娠高血压综合征的发生都是在妊娠以后
D.
肾血管性高血压主要是由于肾动脉狭窄引起肾素-血管紧张素-醛固酮系统激活而引起
E.
血管性高血压引起血压增高的血管病变常见的有主动脉瓣关闭不全、大动脉炎和动脉粥样硬化
查看完整题目与答案
【简答题】磨削钢制曲轴时,一般应选用( )。 [2分]
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】下述病变不属于肾血管性病变的是( )
A.
肾动脉狭窄
B.
肾动脉闭塞
C.
肾动脉瘤
D.
肾血管平滑肌脂肪瘤
E.
肾动脉壁钙化
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.
① ② ③
B.
① ③
C.
② ④
D.
④
E.
① ② ③ ④
查看完整题目与答案