37.

52. According to the passage, money is “mysterious” because it _______.

38.

1. Now may farmers have reverted to traditional farming methods, ________ their ancestors’ way to handle specific pest or disease problems.

16.Today, these methods are viewed as practices that can cause harm and are in the last -_______ only to be used when measures have failed and safety is at sever risk.

32.

45. It can be learned from this passage that ________

55. Which of the following statements about “deserts” is NOT true?

35.

8. We ______ any attempts to infiltrate company networks to obtain user information.

34.

32.刘老师会在每次考试前提醒学生好好复习，根据桑代克的基本规律，这是（ ）的体现。