3. Whether my judgement _______ right or wrong, I will continue my research without any hesitation. 

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

22

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

20. I hope all the precautions against air pollution, ______ suggested by the local government, will be seriously considered here.

2. _________ it is possible that genes have some influence, I find it hard to believe that they would count for more than all the thousands of experiences each person has.

49. What step is essential to the traditional production of flu vaccine?

35.

53. In the passage,“age” refers to _______·

30.

51. Which of the following is true according to the passage?

33.