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【单选题】
细菌对磺胺药产生耐药性的机制可能是:A.
产生水解酶
B.
产生钝化酶
C.
改变胞膜通透性
D.
细菌改变代谢途径
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反馈参考答案：
举一反三
【简答题】根据句意首写字母填单词。 1. It's a ________ (秘密) between you and us. Don't tell anybody about it. 2. As students, it's our d________ to study hard at any subjects. 3. My grandfather died last month. His d________...
【简答题】import from import ,from import ________, import as
【单选题】From the 1870s on, it is impossible to import plants from North America.
A.
Y
B.
N
C.
NG
【简答题】from bs4 import BeautifulSoup的含义是_______
【简答题】PS 案例7和8补交。
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