Five Tank Engine Tales

Here bound together in one volume are five Step into Reading Step 1 and 2 early readers based on the Thomas & Friends movies.

Neurophysiological Basis of Movement
By Mark L. Latash
6.3 The Henneman Principle Number of active MUS The Henneman principle ( also known as the size principle ) states that the recruitment of motor units within a muscle moves from small motor units to large ones .
誰比誰快
By Nicholas Harris, Claire Aston
The authors provide information of various animals' forward moving speed and the speed of man-made moving vehicles; the reader learns the perspective knowledge of comparative locomotion.