同一感受器接受不同的刺激而使感受性发生变化的现象是（）
A.感受性
B.感受性的补偿
C.联觉
D.感觉适应
E.感觉对比
参考答案：E
The Shanghai Expo has attracted more than 73 million tourists, ______ it the most successful in history.
A. making B. makes C. made D to make
在气田开采中，常用的防冻剂有哪些？
