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Questions 86 to 90 are based on the following passage:

In 1791 the French nation, in the midst of a revolution, wished to breakwith the

past,

especially

with

those

aspects

of

it

which

they

consideredillogical

and

useless.

One of those was the traditional system of weightsand measures in use. Not only was

the system overtly complicated, but italso varied widely from place to place.

In constructing the new system, the French began by setting up a unitof distance

equal

to

one

forty-millionth

part

of

the

earth's

circumference(?2?

ü

).

Unfortunately,

later

measurements

showed

that

the

unit

designed

wasnot

exactly

that

fraction,

but

they continued to use it. (Today the unit isdefined simply as the distance between two

marks on a platinumiridium (2??e)bar kept in a suburb of Paris). The unit is the meter,

and the system ofmeasurements based on this unit is

the metric system,

the system

today usedby scientists the world over.

The metric system is built in units of ten, Greek prefixes showingmultiples and

Latin prefixes showing fractions. The Greeks had no word for anumber larger than ten

thousand

and

the

Romans

had

none

for

a

number

largerthan

one

thousand,

but

the

system

was

extended

by

using

less

specific

words;for

instance

megameter

(one

million meters) is derived from a Greek word thatmeans simply

86.

The

French

constructed

a

new

system

of

weights

and

measures

because

_______.

A) their system did not conform to other nations' systems

B) they were in the midst of a revolution

C) simplifying the old system proved difficult

D) they wished to break with the past

87.

The

selection

says

that

the

traditional

system

of

measurements

in

France

_______.

A) varied widely from place to place

B) was useless

C) was based on a complicated logic

D) both A and B

88. The new system was to be developed from _______.

A) a single basic unit

B) a worldwide standard of measurement

C) an old Greek system

D) the smallest unit of traditional system

89. At first the basic unit was to equal _______.

A) one- millionth part of the earth's circumference

B) the distance between two marks on a platinumiridium bar

C) one forty-millionth part of the earth's circumference

D) one forty-millionth part of the earth's diameter

90. When the basic unit was proved inexact, the French _______.

A) reconstructed the entire system

B) changed to another system