【題組】67. A person who avoids meat but eats fish is called a _______.(A) vegetarian (B) pescatarian (C
【題組】68. Which of the following would an ovo-lacto vegetarian be most likely to eat?(A) Fish, beef, a
【題組】69. What can we infer about Vitamin B12?(A) It is found in animal products. (B) Vegetarians do n
【題組】72. What was NOT a problem caused by DDT?(A) It killed a lot of fish. (B) Insects developed resi
【題組】75. Which of the following is NOT correct?(A) In the beginning, DDT was used for agricultural pu
【題組】77. Which of the following is NOT mentioned in the second paragraph?(A) The importance of Encycl
【題組】78. Sales of Encyclopedia Britannica have declined for years because _______.(A) its subscriptio