下列属于确定土地权利归属基本法的是（）。
A.《民法通则》
B.《土地管理法》
C.《城市规划法》
D.《城市房地产管理法》
参考答案：A
小题1:What do people want to do at Nancy’s Gym?
A．To enjoy swimming.
B．To learn skating.
C．To become thinner.
D．To become fatter小题2: Lucy likes skating. Which ad is she probably interested in?
A．Ice World.
B．Water World.
C．Nancy’s Gym.
D．Restaurant小题3:Which costs the most for an adult?
A．Keeping fit at Nancy’s Gym.
B．Skating in Ice World.
C．Swimming in Water World.
D．Losing weight at Nancy’s Gym
X、R表示两种金属，在溶液中发生反应：X+3RNO3=3R+X（NO3）3。下列说法不正确的是
A．该反应是置换反应
B．若X是Al，R是Ag，则反应后溶液质量减少
C．X可能是Fe，R可能是Cu
D．X的金属活动性比R强
