皮皮学，免费搜题
登录
搜题
【简答题】
革兰氏阳性菌特有的细胞壁成分是( ),革兰氏阴性细菌特有的细胞壁成分是( )、脂蛋白、磷脂以及膜蛋白和蛋白。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】阅读下面的短文，然后按照要求一篇150词左右的英语短文. In the past 15 years, homework assignments(布置) have risen by 51% according to a 2006 study . That is an average（平均）of 12 extre hours of homework per week! Excessive homewo...
【单选题】How does a student know what the homework assignments are?
A.
Prof. Klammer announces them in class.
B.
The student reads the list on the next page.
C.
Prof. Klammer gives a list every week in class.
D.
The student goes to the professor's office and asks.
相关题目：