15.At such a time of crisis, we must try __ to all differences and stick together,
A、set aside
B、set back
C、set down
D、set forth
44.What do Americans feel about using credit cards nowadays according to the passage?
A、They consider it valuable.
B、They regard it as a shame.
C、They think it dangerous.
D、They find it quite convenient.
I.Phonetics(5 points) Directions:In each of the following groups of words,there are four underlined letters or let-ter combinations marked A,B,C and D.Compare the underlined parts and iden-tdtify the one that is different from the others in pronunciation.Mark your answer by blackening the corresponding letter on the Answer Sheet.