Scientists measured the impact that people have on the environment using a term called car
"Footprint" refers to the amount of carbon dioxide released by______.
A.an individual
B.an industry
C.a region
D.a country
"Footprint" refers to the amount of carbon dioxide released by______.
A.an individual
B.an industry
C.a region
D.a country
A.The veteran and middle-aged scientists are important, and so are the young ones.
B.The veteran, middle-aged scientists are important, and so are the young ones.
C.The veteran and middle-aged scientists are important, so are the young ones.
D.The veteran, middle-aged scientists are important, so are the young ones.
Dinosaur scientists can get information directly by ______.
A.studying dinosaur fossils
B.examining modern animals
C.watching dinosaurs
D.using telescopes
A、 use
B、 chance
C、 advantage
D、 attention
A.the earth’s surface
B.the surface of earth
C.the earth surface
D.the surface of the earth
Scientists and economists A(believe) that human being B(can never) C(use away) all the D(mineral) resources on Earth.
Scientists say when we catch cold,_____.
A.taking medicine
B.seeing a doctor
C.leaving it to your body
D.making a joke to your friend
A. tried out
B. ran out
C. turned out
D. picked out
A.vacent
B.empty
C.bare
D.hollow
Dinosaur scientists can probably know whether dinosaurs were good parents by ______.
A.watching many kinds of animals
B.studying dinosaurs' living relatives
C.following the tracks left behind
D.working on dug-out dinosaur eggs
A.unlikely
B.unfriendly
C.forbidden
D.vulnerable
Some years ago safety rules_________.
A.were put forwardDue to scientists’recommendations
B.came into being as a result of the workers’demand
C.were introduced because quite a number of people were kiHed or seriously in-jured
D.were effective enough to protect workers and customers