量子比特与经典比特的区别是（）。
A.量子比特是不确定的
B.量子比特同时有不同的状态
C.量子比特不消耗能量
D.量子比特不占空间
参考答案：A, B
阅读短文，给图片编号。
① Amy's friend is a lovely girl. She has long hair and big eyes. She likes singing and painting.
② Mr. Black's new student is strong. He is tall and has long arms. He likes playing basketball.
③ Zhang Peng's friend comes from the USA. He has a big mouth and small eyes. He likes music very much.
④ Peter's friend is an animal. It has short hair. Its nose is big. It likes science.
( ) ( ) ( ) ( )
某现浇楼板设计图纸为φ12@150，工地上仅有φ10钢筋，经代换后，其钢筋间距应为（）。
A.100mm
B.150mm
C.154mm
D.156mm
