. At the Shadybrook dog kennel, all the adult animals were given a new medi-
3 q2 r* e+ }1 |cation designed to reduce a dog's risk of contracting a certain common
* k0 x$ P; B# k; B+ H/ Ginfection. Several days after the medication was administered, most of the
3 F2 E6 R8 B) }6 q b! F8 h0 dpuppies of these dogs had elevated temperatures. Since raised body temp-
1 X7 G. v7 g% @/ \erature is a side effect of this medication, the kennel owner hypothesized ) g% c _0 x3 n* D- |
that the puppies' elevated temperatures resulted from the medication's being
, c# W1 @6 x0 r/ y! npassed to them through their mothers' milk. ! a/ L: G: k2 M; e
Which of the following, if true, provides the most support for the kennel owner's
$ R5 k# Q2 r' Ehypothesis?' h8 K J% n% y3 Z
A Some puppies have been given the new medication directly but have not
# s4 E. @ C, A, f& x' m5 T7 U7 f suffered elevated temperatures as a side effect. 0 u7 l+ y7 M: ?/ k w d6 ?2 D
B The new medication has been well received by dog breeders as a safe
9 h' l/ M% q0 J2 Q1 t2 o X and effective way of preventing the spread of certain common canine * }% M, v8 C w
infections.
$ z% C3 G* {) U( U k0 t C None of the four puppies in the kennel who had been bottle-fed with for-
% u& T$ `6 D0 i mula had elevated temperatures.
9 e% x! M$ [, a, k D An elevated temperature is a side effect of a number of medications for ) y3 J" j- N. N2 R' m) A: i
dogs other than the new medication administered at the kennel.
2 V# k- J; h8 x! U/ q3 X E Elevated temperatures such as those suffered by most of the puppies
7 ?% C8 |$ J# |/ ^7 n% f7 l( @ in the kennel rarely have serious long-term effects on a puppy's health. 1 ?1 h ^) z2 {
答案 C |
发表于 2012-8-15 12:40:43
