辞典:书籍
A.建筑物:长城 B.金字塔:自然景观 C.江苏:平原 D.春分:节气
参考答案:D
解析: 辞典的属概念是书籍;春分的属概念是节。
The survey ____ in our school last month shows that about three percent of the students are addicted to the Internet games.
A.conducted
B.was conducted
C.conducting
D.to be conducted
二极管具有单向导电性,以下不属于其在实际电路中的应用功能的是()。
A.滤波
B.整流
C.检波
D.限幅