题目
Which of the following are the two common ways of applying the pit fields method?A. Ditch-shaped pit field.B. Net-shaped pit field.C. Ridge-shaped pit field.D. Alternating pit field.
Which of the following are the two common ways of applying the pit fields method?
A. Ditch-shaped pit field.
B. Net-shaped pit field.
C. Ridge-shaped pit field.
D. Alternating pit field.
题目解答
答案
AB
A. Ditch-shaped pit field.
B. Net-shaped pit field.
A. Ditch-shaped pit field.
B. Net-shaped pit field.