資訊推薦

• 26. There are more than 30,000 known kinds of spiders in the world, and all of these spiders come in
• 27. The dog flea is a _______ of flea that lives as an ectoparasite on a wide variety of mammals,par
• 28. A number of diseases are spread by ticks to pets, and Powassan _____ has been identified inother
• 29. The greenhouse effect increases the temperature of the Earth by trapping heat in our _____.(A) m
• 30. If you like the idea of growing your own cat grass, you don’t necessarily need to have a _____to
• 31. Coughing, sneezing, or straining usually ____ a prompt rise in pressure from the congestion ofth
• 32. Wernicke’s aphasia commonly occurs _________ embolic strokes.(A) after all (B) instead of (C) as
• 33. The brain, _____accounts for about 2% of the body’s weight, contains many billions of neuronsand
• 34. Most of us share an intense love and bond with our animal _____, so it’s natural to feeldevastat
• 35. Lions can live in Africa because they can _______ water for up to one month. They have notrouble
• 36. Grief for the death of a loved one can only be dealt with over time, but there are healthy ways
• 37. The new study, _______ in the BMJ’s Vet Record, looked at dog and cat food commerciallyavailable
• 38. Humans can get sick from ____ and parasites lurking in raw-meat products.(A) cafeteria (B) bacte
• 39. Industrialized countries have worked to ____ levels of sulfur dioxide, smog, and smoke in ordert
• 40. Scientists say feral pigeons are a valuable way of probing contaminants in environment, ___ they
• 41. Birds can seem to be everywhere during the day, flitting among trees, foraging on the ground,vis
• 42. The more significant your pet was to you, _____ the emotional pain you’ll feel.(A) intenser (B)
• 43. Conditioning is a way of learning by association, _____, by putting together different ideas.(A)
• 44. These results show ____ the mice in the treatment group healed more quickly than the controlmice
• 45. Pets have a relaxing ____. Petting or stroking an animal can improve your mood.(A) effect (B) af
• 46. The unseasonably cold weather has _____ affected the availability of some fresh produce in local
• 47. The Eisenhower Foundation will soon _____ its funding of external scientific research intosevera
• 48. The cat uses its ______ to balance and control the direction.(A) whiskers (B) blink (C) beard (D
• 49. The culture of animal cells in the laboratory was initially more of an art than a science, restr
• 50. _______the disease can be transmitted through air is still uncertain.(A) Whoever (B) Which (C) W