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【单选题】
加压素的主要生理作用是A.
使血管收缩，升高血压
B.
促进肾小Na+重吸收
C.
降低肾远曲小管和集合管对水的通透性
D.
增加肾远曲小管和集合管对水的通透性
E.
促进肾的排钾作用
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举一反三
【简答题】逻辑变量是用来表示逻辑关系的二值量,它们的取值只有________和________两种。
【单选题】Which of the following statements is False? .
A.
Newspaper journalists often interview people and keep a record by using shorthand or technical equipment.
B.
Newspaper journalists should produce concise and accurate copies according to the newspaper’s house style before the deadlines.
C.
Newspaper journalists need to answer questions at a press conference.
D.
Newspaper journalists should be persistent, flexible, and strongly-motivated.
【单选题】Which of the following is true?
A.
In the 1960s, computer networks worked well.
B.
In the early 1970s, the Internet was easy to use.
C.
Sending e-mail is now more popular among students than before.
D.
Today it's still not easy to get on-line.
【简答题】逻辑变量是用来表示逻辑关系的二值量,它们的取值只有 和 两种。(填阿拉伯数字)
【简答题】逻辑变量是用来表示逻辑关系的二值量,它们的取值只有 和 两种;二个输入变量共有 种取值组合。
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