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问题 单项选择题

食用哪种方式处理的奶制品可避免乳糖不耐受（）。

A.充分加热

B.冷冻

C.加糖

D.发酵

E.加防腐剂

答案

参考答案：D

解析：经过发酵处理的奶制品，可将奶液中的乳糖分解，食用后可避免机体对乳糖的不耐受。

单项选择题

The data station usually means a (71) unit that provides data for transmission, that accepts transmitted data, and that performs all functions necessary for communication with another functional unit. Data stations may be divided into two kinds, the primary stations and the secondary stations, (72) control functions.

In (73) data link control, the primary station is the data station that supports the primary control functions of the data link, generates commands to be transmitted, and interprets received responses. Specific responsibilities assigned to the primary station include initialization of control signal interchange, organization of data flow and actions regarding error control and error recovery functions. The secondary station executes data link control functions as (74) by the primary station, interprets received commands and (75) responses to be transmitted.

（75）处填（）。

A．produces

B．creates

C．generates

D．makes
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选择题

跨经度最多的大洲是（　　）

A．大洋洲

B．非洲

C．南极洲

D．南美洲
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