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