与细菌细胞壁黏肽侧链形成复合物，阻碍细菌细胞壁合成的药物是
A．青霉素
B．红霉素
C．头孢唑林
D．头孢吡肟
E．万古霉素
参考答案：E
—Why is Maria so nervous? Because she doesn't know ________at the big party．
A．to wear what
B．to wear how
C．what to wear
D．how to wear
边缘胎座
