单轮间隔放煤
参考答案：
是指间隔一架或若干支架打开一个放煤口，每个放煤口一次放完，见矸关门。
If you leave this application form and go to another website, you will lose_____ you have already filled out on this form.
A．whatever
B．no matter what
C．whichever
D．no matter which
手的灵巧性、协调性有赖于感觉和运动的健全，也与视觉等其他感觉灵敏度有关。
