energy

  During a trip to observe wild animals in Africa, I encountered the least brave animal on earth, the wildebeest(角马). I sat on a riverbank for three hours watching a group of thousands build (56)_____ the courage to drink water.  More than a million w

  During a trip to observe wild animals in Africa, I encountered the least brave animal on earth, the wildebeest(角马). I sat on a riverbank for three hours watching a group of thousands build (56)\_\_\

Passage 2Questions 6 to 10 are based on the following passage:  The science behind solar(太阳的) is now new. But Sheridan Community Schools is the first school district in Indiana to be completely solar-powered. The district finished installing solar panels(

Passage 2Questions 6 to 10 are based on the following passage:  The science behind solar(太阳的) is now new. But Sheridan Community Schools is the first school district in Indiana to be completely solar-

Passage 3Questions 11 to 15 are based on the following passage:  If the Dakota Access Pipeline(输油管道) is completed, it will carry nearly half a million barrels of oil across four states every day. Energy Transfer Partners (ETP), a Texas-based company behin

Passage 3Questions 11 to 15 are based on the following passage:  If the Dakota Access Pipeline(输油管道) is completed, it will carry nearly half a million barrels of oil across four states every day. Ener

Passage 3Questions 11 to 15 are based on the following passage.  The word science is heard so often in modern times that almost everybody has some notion of its meaning. On the other hand, its definition is difficult for many people. (79) The meaning of t

Passage 3Questions 11 to 15 are based on the following passage.  The word science is heard so often in modern times that almost everybody has some notion of its meaning. On the other hand, its definit