[求助]GWD 5 中两个逻辑，自己牵强解释了下

Q3:

The average hourly wage of television assemblers in Vernland
has long been significantly lower than that in neighboring Borodia.  Since Borodia dropped all tariffs on
Vernlandian televisions three years ago, the number of televisions sold
annually in Borodia has not changed. 
However, recent statistics show a drop in the number of television
assembler装配工人s in Borodia.  Therefore, updated trade statistics will
probably indicate that the number of televisions Borodia imports annually from
Vernland has increased.

Which of the following is an assumption on which the
argument depends?

1. The
        number of television assemblers in Vernland has increased by at least as
        much as the number of television assemblers in Borodia has decreased.
               无法得知
2. Televisions
        assembled in Vernland have features that televisions assembled in Borodia
        do not have.
               无关
3. The average number of hours it takes a
        Borodian television assembler to assemble a television has not decreased
        significantly during the past three years.

（无论是decrease  ,increase 只要ave o# of hours per
assembler不变, * dereased # of workers,=> 总的装配的电视机肯定少了，所以需要import）

4. The
        number of televisions assembled annually in Vernland has increased
        significantly during the past three years.  无法得知，import多少不等于
               increase多少
5. The
        difference between the hourly wage of television assemblers in Vernland
        and the hourly wage of television assemblers in Borodia is likely to
        decrease in the next few years.

（无法得知）

Q26:
        （不知B如何排除）

Healthy lungs produce a natural antibiotic 抗菌的 that protects them
from infection by routinely killing harmful bacteria on airway surfaces.  People with cystic fibrosis, however, are
unable to fight off such bacteria, even though their lungs produce normal
amounts of the antibiotic.  The fluid on
airway surfaces in the lungs of people with cystic fibrosis has an abnormally
high salt concentration; accordingly, scientists hypothesize that the high salt
concentration is what makes the antibiotic ineffective.

Which of the following, if true, most strongly supports the
scientists’ hypothesis?

      A  
When the salt concentration of the fluid on the airway surfaces
of healthy people is raised artificially, the salt concentration soon returns
to normal.
        无关

B．sample of the antibiotic was capable of killing bacteria in an
environment with an unusually low concentration of salt.
        

C．When lung
tissue from people with cystic fibrosis is maintained in a solution with a
normal salt concentration, the tissue can resist bacteria.

D.   Many lung infections
can be treated by applying synthetic antibiotics to the airway surfaces.
        无关