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【单选题】
关于细胞壁的功能不包括A.
维持细菌固有形态
B.
保护细菌抵抗低渗环境
C.
具有抗吞噬作用
D.
具有免疫原性
E.
与细胞膜共同完成细菌细胞内外物质交换
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反馈参考答案：
举一反三
【单选题】When people shop at a flea market, how can they settle on a price?
A.
They can question their value.
B.
They can compare with the other sellers.
C.
They can bargain on a price acceptable to both.
D.
They can expect a fifty percent discount.
【简答题】Nowadays, more and more people like to shop on the Internet. How can you protect yourself from different types of Internet tricks? Following these tips can make you online shopping safer： (1) Never ...
【单选题】People can shop online at home at any time of the day.
A.
人民上网购物可以在家里的任何时间。
B.
人们可以在任何时间段里在家上网购物。
C.
人们可以通常在家里上网购物。
【单选题】---Can you tell me why more and more people choose to shop in a supermarkets? ---Because it offers a great ______ of goods.
A.
connection
B.
mixture
C.
variety
D.
majority
【简答题】阅读理解。 Mabel is a cashier (收银员) in a big shop in New York. People can buy medicine, watches, sweets, and many other things. They pay Mabel for the things they buy. At the shop people can also buy lotte...
【简答题】2019 年综合题(共12分) 40 .在RL串联正弦交流电路中,已知电阻R = 3 Ω,电感L = 0.5H ,电流 。试求: (1)电感的感抗X L ; (2)电路的总阻抗Z; (3)电源电压的有效值U。
【简答题】People can shop online at home at ________ time of the day.A. any
【单选题】People like to shop in the supermarket because they are interested in the ________ of goods on offer and can buy whatever they want.
A.
price
B.
variety
C.
value
D.
amount
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