A. TO B. FROM C. IN D. ABOUT(46-50). READ THE PASSAGE BELOW CAREFU...

45. a. to

b. from

c. in

d. about

(46-50). Read the passage below carefully and choose the correct answer a, b, c or d.

A few years ago the Americans sent a spacecraft to examine Venus. However, when it

was near Venus, it was necessary to alter its direction slightly by means of a computer.

They tried to do this by typing the Fortran statement: DO 3 1 = 1.3. Unfortunately, this

statement was incorrect because there was a comma instead of a full stop. The correct

statement would have sent the spacecraft very close to Venus, but the incorrect statement

sent the spacecraft into outer space. Several billion dollars were wasted as a result of such

a mistake.