罗斯福新政的特点是 [ ]
A．提高工人的各种待遇
B．加强国家对经济的干预和指导
C．打击垄断资产阶级势力
D．消除经济危机
答案：B
—Bob has gone to California.
—Oh, can you tell me when he ________?[ ]
A. has left
B. left
C. is leaving
D. would leave
单边余量
