一个数缩小4倍后与3缩小5倍后加4的结果相同,求这个数.
(3×15+4)÷14,
=(35+4)×4,
=235×4,
=18.4;
答:这个数是18.4.
The poor man, _____ ,ran out of the dark cave. [ ]
A. tiring and frightened
B. tired and frightened
C. tired and frightening
D. tiring and frightening
传感器transducer/sensor