Translate the following English words or phrases into Chinese.1. peptidoglycan2.cephalosporin3.β-lactamase4. mechanism of resistance
Translate the following English words or phrases into Chinese.1. peptidoglycan2.cephalosporin3.β-lactamase4. mechanism of resistance
Gram-positive bacteria can be differentiated from Gram-negative bacteria since the peptidoglycan layer comprises 10% of the cell wall
Gram-positive bacteria can be differentiated from Gram-negative bacteria since the peptidoglycan layer comprises 10% of the cell wall
Which of the following components can be recognized by phages as receptors for Escherichia coli? (). A: Lipopolysaccharide B: Peptidoglycan C: Flagellum D: Pili
Which of the following components can be recognized by phages as receptors for Escherichia coli? (). A: Lipopolysaccharide B: Peptidoglycan C: Flagellum D: Pili
参与peptidoglycan生物合成的高能磷酸化合物是() A: ATP B: GTP C: UTP D: CTP
参与peptidoglycan生物合成的高能磷酸化合物是() A: ATP B: GTP C: UTP D: CTP
单词的音节数量分别为:ум、тома́т、пото́м、потому́、поэ́т、Эмма A: 1、3、3、3、3、2 B: 1、2、2、3、2、2 C: 2、3、3、3、3、2 D: 2、2、2、3、2、2
单词的音节数量分别为:ум、тома́т、пото́м、потому́、поэ́т、Эмма A: 1、3、3、3、3、2 B: 1、2、2、3、2、2 C: 2、3、3、3、3、2 D: 2、2、2、3、2、2
设集合A ={1, 2, 3}, 下列关系R中哪些是等价关系?A、{<1, 1>, <2, 2>, <3, 3>}B、{<1, 1>, <2, 2>, <3, 3>, <3, 2>, <2, 3>}C、{<1, 1>, <2, 2>, <3, 3>, <1, 3>}D、{<1, 1>, <2, 2>, <1, 2>, <2, 1>, <1, 3>, <3, 1>, <3, 3>, <2, 3>, <3, 2>}
设集合A ={1, 2, 3}, 下列关系R中哪些是等价关系?A、{<1, 1>, <2, 2>, <3, 3>}B、{<1, 1>, <2, 2>, <3, 3>, <3, 2>, <2, 3>}C、{<1, 1>, <2, 2>, <3, 3>, <1, 3>}D、{<1, 1>, <2, 2>, <1, 2>, <2, 1>, <1, 3>, <3, 1>, <3, 3>, <2, 3>, <3, 2>}
设集合A={1, 2, 3}, 不是A上的等价关系。 A: {(1, 1), (2, 2), (3, 3)} B: {(1, 1), (2, 2), (3, 3), (1, 3), (3, 1)} C: {(1, 1), (2, 2), (3, 3), (2, 3)} D: {(1, 1), (2, 2), (2, 3), (3, 2), (2, 1), (1, 2), (3, 3), (1, 3), (3, 1)}
设集合A={1, 2, 3}, 不是A上的等价关系。 A: {(1, 1), (2, 2), (3, 3)} B: {(1, 1), (2, 2), (3, 3), (1, 3), (3, 1)} C: {(1, 1), (2, 2), (3, 3), (2, 3)} D: {(1, 1), (2, 2), (2, 3), (3, 2), (2, 1), (1, 2), (3, 3), (1, 3), (3, 1)}
请写出该语句的执行结果 printf(“3 + 2 = %d, 3 / 2 = %d,3 * 2 = %d, 3 % 2 = %d“,3 + 2, 3 / 2 ,3 * 2, 3 % 2);
请写出该语句的执行结果 printf(“3 + 2 = %d, 3 / 2 = %d,3 * 2 = %d, 3 % 2 = %d“,3 + 2, 3 / 2 ,3 * 2, 3 % 2);
Which two are equivalent?() A: 3/2 B: 3<2 C: 3*4 D: 3<<2 E: 3*2^2 F: 3<<<2
Which two are equivalent?() A: 3/2 B: 3<2 C: 3*4 D: 3<<2 E: 3*2^2 F: 3<<<2
已知序列x(n)={2,1,-2,1},该序列的自相关函数为 ( ) A: {2, -3, 2, 8, 2, -3, -2} B: {2, -3, -2, 10, 2, -3, 2} C: {2, -3, -2, 10, -2, -3, 2} D: {-2, -3, 2, 10, -2, -3, -2}
已知序列x(n)={2,1,-2,1},该序列的自相关函数为 ( ) A: {2, -3, 2, 8, 2, -3, -2} B: {2, -3, -2, 10, 2, -3, 2} C: {2, -3, -2, 10, -2, -3, 2} D: {-2, -3, 2, 10, -2, -3, -2}