托福考试

【单选题】 While photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

【单选题】 The word "biting" in line 8 is closest in meaning to
A．( simple
B．( sorrowful
C．( frequent
D．( sharp

【多选题】 This guideline is intended to -------- information about our databases and to provide a clear definition of how these database get 0updated and who has responsibilities
A．clarification
B．classified
C．cleared
D．clarify

【单选题】 The passage mentions which of the following asa result of improvements in factory machinery
A．(It become easier for factory' owners to find workers and customers
B．(Manufacturers had to employ more highly skilled workers
C．(The amount of power required for factories operate was reduced
D．(Factories could operate more than one engin at a time

【单选题】 (Inventor) Elisha Graves Otis designed the first elevator (that it incorporated) anautomatic brake, which in turn (led to) the (development) of the skyscraper.
A．Inventor
B．that it incorporated
C．led to
D．development