【单选题】The effect of penicillin on Staphylococcus aureus is ().
A.
Penicillin destroy the teichoic acid
B.
Penicillin damage the cell membrane
C.
Penicillin interferes with the connection between the cross-linking bridge and the tetrapeptide side chain
D.
Penicillin Split the glycan backbone
E.
Penicillin inhibit the bacterial protein synthesis
【多选题】下列诗句中,哪些暗含了“对立统一”的思想?
【简答题】正确安装三孔插座,应该是左孔( )线,右孔( )线,上孔( )线。
【单选题】型钢中的 H 型钢和工字钢相比, ( ) 。