下列壶具中（）是商用咖啡机发明以前唯一使用蒸汽压力原理制作咖啡的器具。
A、虹吸壶
B、越南滴滤器
C、冰滴壶
D、摩卡壶
参考答案：D
To avoid on how to use the word, you'd better refer to a dictionary. [ ]
A. to get confused
B. getting confused
C. to get confusing
D. getting confusing
处于临床死亡期的病人是可以被复苏的
