【单选题】Regular exercise can help to ________ the pain.
【单选题】What kind of people, according to the passage, can take running as regular exercise immediately?
A.
People with a lot of enthusiasm.
B.
People with good health condition.
C.
People who have no money but lots of time.
D.
People who want to be stronger.
【单选题】因色彩纯度的差异而形成的色彩鲜浊对比是:
【单选题】--Why can she keep such a good figure? --She ________ great importance to regular exercise.
【简答题】一个十进制数 97,转换为二进制,应为()
【简答题】设 是定义在R上的奇函数,且满足 ,则 .