问题
选择题
The medicine _____ natural plants.
A．is made of
B．is made from
C．is made in
D．is made into
答案
B
制成成品看不出原材料应该用be made from。
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The medicine _____ natural plants.
A．is made of
B．is made from
C．is made in
D．is made into
B
制成成品看不出原材料应该用be made from。
