新GRE小短文阅读练习题八十一

会计考友

For ten years, commercial shrimp boats in the country of Valaria have been
( X# j, A! }* i6 T2 H  a! @using devices designed to prevent sea turtles, which are an endangered
species, from being entangled in their nets.  The sea-turtle population in
Valarian waters has increased over the past ten years.  Since no other
. q7 J7 V! G. i# M6 N5 |measures to protect sea turtles have been taken, the population increase
must in large part be due to the use of the devices.
Which of the following, if true, most strengthens the argument?
     A  The number of commercial shrimp boats fishing in Valarian waters is
- W2 {0 [$ M! F5 w% V       much larger now than it was ten years ago.  
     B　 The number of sea turtles using Valarian beaches for their nests is
       larger now than it was ten years ago.  
    C  The devices have to be imported into Valaria because they are not
  n5 z& G+ o" R. t* g       being manufactured there.  
2 u4 i% S1 J4 ]   D   Sea turtles that get entangled in the nets of shrimp boats can do con-
       siderable damage to those nets.  
   E   The use of the devices to prevent sea turtles from being entangled
# n% s3 y! w0 a6 ^. I- j5 n       in shrimp nets does not significantly affect the amount of shrimp that
       can be caught in the nets.  
7 L! S9 x% |$ H$ @6 L答案A