【多选题】膝关节是人体最复杂的关节,上有髋关节,下有踝关节,影响腿形和腿部的支撑。以下描述正确的是:
【简答题】膝关节是人体最复杂的关节,它由()关节和()关节构成,属于()关节。
【单选题】Do you prefer_____when your boss takes an interest in your personal life?
【单选题】决定着其他一切活动的最基本的实践活动是( )
【单选题】具有补血滋阴,益精填髓,能大补五脏之阴的药物是
【单选题】What should you do to protect yourself on Internet?
A.
change your personal information as much as possible.
B.
not reveal any of your interests and photos.
C.
conceal your real personal information.
D.
not provide your personal address and phone number.