水解后方可发生与碱性酒石酸铜试液的反应者
A. 葡萄糖
B. 蔗糖
C. 地高辛
D. 咖啡因
E. 奋乃静
The young girl showed wonderful facility for learning languages.
A. liking
B. imagination
C. delight
D. aptitude
__________ of us has much time. We __________ have much homework to do.
A. Both... both
Both... neither
C. Neither... both
文件是( )构成的数据集合。
A. 字段
B. 字符
C. 记录
D. 汉字