题目

Many students may feel stressed because of their parents. Most parents have good intentions, but some of them aren’t very   61   (help) with the problems their sons and daughters have in   62  (adjust) to college, and a few of them seem to go out of their way to add to their children’s difficulties. For one thing, parents are often not aware   63   the kinds of problems their children face. They don’t realize that the   64   (compete) is stronger, that the required standards of work are   65   (high), and that their children may not be prepared for   66   c的平方根是____.