森林立地
参考答案:指某一森林地段上的植被与其环境的总和,包括地质、地貌、气候、土壤、植被等。
5.The growing speed of a plant is influenced by a number of factors, _______ are beyond our control.
A.most of them
B.most of which
C.most of what
D.most of that
使用8B1H线路码型的光端机设备可用()方式来传输监控信号。