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【单选题】
在逻辑运算中有 Y = A + B ,则表示逻辑变量 A 和 B 进行 。A.
与运算
B.
或运算
C.
非运算
D.
与非运算
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举一反三
【简答题】细心观察图形，然后解答问题： (1) OA10= ； (2) = ．
【单选题】Distinguished guests and friends, welcome to our school, ______the ceremony of the 50th Anniversary this morning are our alumni ( 校友 ) from home and abroad. A. Attend B. To attend ...
A.
1
B.
2
C.
3
D.
4
【简答题】表示关系 x ≥ y ≥ z 的 C 语言表达式( )
【简答题】Task 2 Mary is introducing geisha to the tourists. Listen to the passage and fill in the blanks with what you hear. Geishas are 1. ____________________who attend guests during meals, banquets and on o...
【简答题】Task 3 Directions: Read the following letter. After reading it, you should complete the information by filling in the blanks marked 48 to 52 ( in no more than 3 words) in the table below. You should w...
【简答题】在多级放大器中,分析级间功率传输的目的是?
【单选题】All the guests were invited to attend the wedding ______ and had a very good time.
A.
feast
B.
congratulations
C.
festival
D.
recreation
【简答题】阅读下文，寻找规律 （1） （2）观察上式：猜想： （3）根据你的猜想，计算：
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