【单选题】According to the text, to be 'thrown clear' of a serious accident is very erous because you______.
A.
may be knocked down by other cars
B.
may get seriously hurt being thrown out of the car
C.
may find it impossible to get away from the seat
D.
may get caught in the car door
【单选题】The speaker began to panic in the library becaus e ___ _
A.
she couldn ' t read anything
B.
she couldn ' t find anything
C.
she couldn ' t remember anything
【单选题】According to the passage, the first settlers used wood for their utensils and tools because it was ______.
【简答题】According to the author the concept of “environment” is difficult to explain because ________. A) it doesn’t distinguish between the organism and the environment B) it involves both internal and exter...
【单选题】According to the passage, in 1974, Ames suddenly became a hero of environmentalists because ______.
A.
he suggested that some students test various household products
B.
he stated that many common hair dyes tested positive
C.
he stated that a flame retardant used in children's pajamas tested positive
D.
his findings resulted in new regulations and laws on certain chemicals
【单选题】Before fridges came into use, it was still possible for people to have fresh foods because 查看材料
A.
milk, meat, vegetables, etc. were delivered
B.
it has promoted the sales of many kinds of Commodities
C.
foods can be preserved
D.
most kids like iced soft drinks
E.
every housewife needs food
F.
the fridge produced when it is working