某人对自己的动产享有收益的权利属于( )。
A．所有权
B．用益物权
C．担保物权
D．产权
参考答案：A
命题：“若x2＜1，则－1 ≤ x＜1”的逆否命题是
A．若x2≥1，则x＜－1，或x≥1
B．若－1≤x＜1，则x2＜1
C．若x≤－1，或x＞1，则x2≥1
D．若x＜－1，或x≥1，则x2≥1
Though measures have now been taken to prevent further price hikes, many people remain _______ over the rising cost of food.
A．be concerning
B．concerns
C．concern
D．concerned
