A-A+
Roots have the ability to ______.A．make protei
问题详情
Roots have the ability to ______.
A．make proteins
B．obtain fresh air
C．produce inorganic nitrogen
D．carry out activities without energy
参考答案
正确答案：A
解析：细节题型。见第一段第六句：Roots are capable of making their own proteins and other organic compounds．所以选项A是答案。
