问题
单项选择题
These samples have to be () in certain kind of chemical water in order to protect them.
A. immersed
B. crisped
C. armored
D. arrayed
答案
参考答案：A
解析：
immersed沉浸的，使陷入；crisped起皱的；armored武装，装甲的；arrayed打扮，装饰。答案是A。