尽管计算机的制作技术发生了突飞猛进的变化，但都是基于美籍匈牙利科学家冯.偌伊曼（）提出恩德“程序储存”的概念制造的。
参考答案：1946年
阅读下面的短文，根据其内容用括号内所给动词的适当形式填空。
The Spring Festival (1)________(be) coming. Tina (2)________(love) this time of the year. She can
(3)________(get) up late and (4)________(play) all day. She (5)________(not, do) any homework.
Everybody in her family (6)________(be) happy at this time because they all (7)________(have) a long
holiday. Her mother usually (8)________(teach) her to cook something delicious. Her father (9)________
(buy) some gifts for her! He always (10)________(give) her a surprise. For Tina, the happiest thing is to
receive a gift from her father.
皂角刺的别名是（）
A.天丁
B.元宝贝
C.马尾
D.平贝
E.双勾
