______, to solve problems, and to overcome difficulties, all give one a sense of satisfact

He tried to solve the problem, but he （quick) ________ gave up.

Most mathematicians trust their______ in solving problems and readily admit they would not

Equipment and technology upgrades do not______ solve the problem either.A．virtuallyB．rarel

We should cultivate students ability to analyse and solve problems______.A．of their ownB．o

There is frequently a great interval between knowing how to solve a problem and______the r

To solve the present social problems the author suggests that we should ______ .A.resort t