把下列动词还原到文中。
纵 跳 蹲 睁
他瞑目身，将身一，径入瀑布泉中，忽眼抬头观看，那里边却无水无波，明明朗朗的一架桥梁。
蹲 纵 跳 睁
胸腺瘤与胸腺增生的鉴别要点，下列错误的是
A．胸腺增生多见于青少年
B．胸腺瘤很少发生于20岁以下者
C．伴有重症肌无力者为胸腺瘤，而非胸腺增生
D．胸腺增生多无明显肿块轮廓
E．胸腺瘤可出现坏死、囊变和出血
An analog signal’s characteristic quantity representing data may (66) . at any instant, any value within a continuous (67) . For example, an analog signal may follow continuously the values of another physical quantity representing data.
A discrete signal is composed of (68) elements in time, each element having one or more characteristic quantities which can represent data. Examples of characteristic quantities are amplitude, waveform, (69) , and position in time. A digital signal is a special case of discrete signals, in which data are represented by a (70) number of well-defined discrete values that one of its characteristic quantities may take in time.
（67）处填（）。
A．interval
B．region
C．range
D．compartment
身，将身一，径入瀑布泉中，忽眼抬头观看，那里边却无水无波，明明朗朗的一架桥梁。
身，将身一，径入瀑布泉中，忽眼抬头观看，那里边却无水无波，明明朗朗的一架桥梁。