3. Directions:In each of the following groups of words, there are four underlined letters or lettercombinations marked A, B, C and D. Compare the underlined parts and identify theone that is different from the others in pronunciation. Mark your answer by blackeningthe corresponding letter on the Answer Sheet.()
A、P(o)st
B、c(o)st
C、m(o)st
D、h(o)st
What do Teitel' s words in the last paragraph imply?
A、The tortoises were fond of seeing Earthrise.
B、The tortoises were not given due credit for their experience.
C、Thetortoises were not named after the Soviet spacecraft.