【判断题】土壤具有肥力是其最本质的特征,是其区别于其他事物的标志。
【简答题】土壤具有______是土壤不同于其他自然物质最本质的特征。
【单选题】There are many different kinds of tasks for students to do while they are listening to a passage. Which of the following is NOT while-listening activities?
C.
Listening for specific information
D.
No specific responses.
【简答题】How many tasks are there in the IELTS Academic Writing test?
【简答题】土壤具有______是土壤不同于其他自然物质最本质的特征。
【单选题】高产土壤最本质的特征是具有高度的( )。