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【判断题】
交轴电枢反应将使同步发电机的气隙磁势和气隙磁场都略有增加。( )
A.
正确
B.
错误
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举一反三
【单选题】Which subunit of the RNA polymerase should be the best target site for the designed drug, when you want to design a new antibacterial drug that targets the prokaryotic RNA polymerase ?
A.
α subunit
B.
β subunit
C.
β’ subunit
D.
σ subunit
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【多选题】以下对“仪式”表述中，正确的有（）。
A.
仪式是一种精神活动
B.
仪式是一种社会现象
C.
仪式最早是人与人的交流活动
D.
仪式最早是人与非自然因素交流的行为
查看完整题目与答案
【多选题】下面关于热磁式氧分析仪表述正确的是()。
A.
由于热磁对流，左半边靠近磁场的电阻丝r1的热量有一部分被气流带走而产生热量损失。
B.
流经右半边电阻丝r2的气体已经是受热气体，所以r2没有或略有热量损失。
C.
被测气体中氧含量越高，磁风的流速就越大。
D.
r1和r2的阻值相差就越大，测量电桥的输出信号就越大。
查看完整题目与答案
【单选题】Which antibacterial drug act by inhibition of bacterial cell wall synthesis?
A.
penicillin
B.
streptomycin
C.
Chloramphenicol
D.
Trimethoprim
E.
Sulfonamides
查看完整题目与答案
【单选题】Which type of the following cells in the epithelial lining of the adult mammalian intestine secrets antibacterial proteins?
A.
absorptive brush-border cells
B.
Paneth cells
C.
enteroendocrine cell
D.
mucus-secreting goblet cells
查看完整题目与答案
【单选题】which particle has the antibacterial properties
A.
silver nanoparticles
B.
sodium nanoparticles
C.
silicon nanoparticles
查看完整题目与答案
【单选题】3-4.Which particle has the antibacterial properties?
A.
silver nanoparticles
B.
sodium nanoparticles
C.
silicon nanoparticles
查看完整题目与答案
【单选题】Regarding the mechanism of antibacterial drugs, which of the following is wrong
A.
青霉素抑制转肽酶阻碍细菌细胞壁的合成
B.
喹诺酮类抑制DNA复制
C.
磺胺类抑制RNA转录
D.
氨基苷类抑制细菌蛋白质合成的多个环节
查看完整题目与答案
【单选题】下列有关结核分枝杆菌说法错误的是（）
A.
耐煮沸，100℃5分钟方能杀死
B.
抗酸染色呈阳性
C.
耐碱又耐酸
D.
菌落干燥，呈菜花状
E.
对紫外线敏感
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【单选题】Regarding the antibacterial action of gentamicin, which of the following statements is most accurate?
A.
Efficacy is directly proportionate to the time that the plasma level of the drug is greater than the minimal inhibitory concentration
B.
Gentamicin continues to exert antibacterial effects even after plasma levels decrease below detectable range
C.
Antibacterial activity is often reduced by the presence of an inhibitor of cell wall synthesis
D.
The antibacterial action of gentamicin is time dependent
查看完整题目与答案
相关题目：
【单选题】Which subunit of the RNA polymerase should be the best target site for the designed drug, when you want to design a new antibacterial drug that targets the prokaryotic RNA polymerase ?
A.
α subunit
B.
β subunit
C.
β’ subunit
D.
σ subunit
查看完整题目与答案
【多选题】以下对“仪式”表述中，正确的有（）。
A.
仪式是一种精神活动
B.
仪式是一种社会现象
C.
仪式最早是人与人的交流活动
D.
仪式最早是人与非自然因素交流的行为
查看完整题目与答案
【多选题】下面关于热磁式氧分析仪表述正确的是()。
A.
由于热磁对流，左半边靠近磁场的电阻丝r1的热量有一部分被气流带走而产生热量损失。
B.
流经右半边电阻丝r2的气体已经是受热气体，所以r2没有或略有热量损失。
C.
被测气体中氧含量越高，磁风的流速就越大。
D.
r1和r2的阻值相差就越大，测量电桥的输出信号就越大。
查看完整题目与答案
【单选题】Which antibacterial drug act by inhibition of bacterial cell wall synthesis?
A.
penicillin
B.
streptomycin
C.
Chloramphenicol
D.
Trimethoprim
E.
Sulfonamides
查看完整题目与答案
【单选题】Which type of the following cells in the epithelial lining of the adult mammalian intestine secrets antibacterial proteins?
A.
absorptive brush-border cells
B.
Paneth cells
C.
enteroendocrine cell
D.
mucus-secreting goblet cells
查看完整题目与答案
【单选题】which particle has the antibacterial properties
A.
silver nanoparticles
B.
sodium nanoparticles
C.
silicon nanoparticles
查看完整题目与答案
【单选题】3-4.Which particle has the antibacterial properties?
A.
silver nanoparticles
B.
sodium nanoparticles
C.
silicon nanoparticles
查看完整题目与答案
【单选题】Regarding the mechanism of antibacterial drugs, which of the following is wrong
A.
青霉素抑制转肽酶阻碍细菌细胞壁的合成
B.
喹诺酮类抑制DNA复制
C.
磺胺类抑制RNA转录
D.
氨基苷类抑制细菌蛋白质合成的多个环节
查看完整题目与答案
【单选题】下列有关结核分枝杆菌说法错误的是（）
A.
耐煮沸，100℃5分钟方能杀死
B.
抗酸染色呈阳性
C.
耐碱又耐酸
D.
菌落干燥，呈菜花状
E.
对紫外线敏感
查看完整题目与答案
【单选题】Regarding the antibacterial action of gentamicin, which of the following statements is most accurate?
A.
Efficacy is directly proportionate to the time that the plasma level of the drug is greater than the minimal inhibitory concentration
B.
Gentamicin continues to exert antibacterial effects even after plasma levels decrease below detectable range
C.
Antibacterial activity is often reduced by the presence of an inhibitor of cell wall synthesis
D.
The antibacterial action of gentamicin is time dependent
查看完整题目与答案