中东（含西亚）地区拥有的优势资源是[ ]
A．石油资源
B．土地资源
C．淡水资源
D．森林资源
答案：A
若复数z满足：（2+i）z为纯虚数，且z-2的模等于2，求复数z．
Mary is going on a diet . as she has put on _______recently.
A．weights
B．weight
C．a weight
D．the weight
