38. Before the invention of refrigeration, the________ of fish and meat must have been a problem. (A) treatment. (B) maintenance. . . (C) addition. (D) presentation. (E) preservation.

44. If all the rainforests were ruthlessly destroyed, there would be nearly 40% less oxygen in the atmosphere, which means that the CO2 levels would increase much higher and thus the inhabitants on the planet would be endangered. "Ruthlessly" means_________. (A) mercilessly. (B) privately. (C) artfully. (D) gradually. (E) quickly.

38. Before the invention of refrigeration, the________ of fish and meat must have been a problem. (A) treatment. (B) maintenance. . . (C) addition. (D) presentation. (E) preservation.

其他試題

38. Before the invention of refrigeration, the________ of fish and meat must have been a problem.
(A) treatment.
(B) maintenance. . .
(C) addition.
(D) presentation.
(E) preservation.