【单选题】革兰阳性菌对青霉素敏感,是由于:
B.
青霉素干扰革兰阳性菌细胞壁肽聚糖中甘氨酸交联桥与四肽侧链上的D-丙氨酸之间的联结
【单选题】Whenever I met him , ____ was fairly often, I like his sweet and hopeful smile.
【单选题】Whenever I met him, ____ was fairly often, I like his sweet and hopeful smile.
【简答题】Whenever I met him, ________ was fairly frequent, ________ I liked his sweet and hopeful smile. [A] which...不填 [B] that... that [C] it... that [D] what... 不填
【单选题】Whenever I met him, _____ was fairly frequent, _____ I liked his sweet and hopeful smile.A.that
A.
168. Whenever I met him, _____ was fairly frequent, _____ I liked his sweet and hopeful smile. A.that; that
【单选题】Whenever I met him, ______ was fairly frequent, ______ I liked his sweet and hopeful smile.
【单选题】革兰阳性菌对青霉素敏感,是由于青霉素能
A.
抑制五肽桥与四肽侧链末端的D-丙氨酸之间的连接
【单选题】革兰阳性菌对青霉素敏感,是由于
B.
青霉素干扰革兰阳性菌细胞壁肽聚糖中甘氨酸交联桥与四肽侧链上的D-丙氨酸之间的联结
D.
青霉素能溶解革兰阳性菌细胞壁肽聚糖的多糖支架
【单选题】Whenever I met him,______was fairly frequent,______I liked his sweet and hopeful smile.