I think science is ____(difficult) than history.

计算：﹣36$÷$×$\frac{6}{5}$×$\frac{5}{6}$（﹣$\frac{2}{5}$）

人大要保持同人民的血肉联系，了解人民的意见，倾听人民的呼声，反映人民的意志，自觉把人大工作置于人民的监督之下。只有这样，人大工作才有坚实的群众基础，才能保持勃勃生机与旺盛活力。这表明必须正确处理（  ）

As we grow up, it always _______ that after we give something up, we gain something new in its place. （   ）