问题
选择题
Dr Ma operated _______ over 150 patients _______ his visit to that poor town . [ ]
A. in, while
B. on, during
C. for, in
D. on, for
答案
答案：B
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Dr Ma operated _______ over 150 patients _______ his visit to that poor town . [ ]
A. in, while
B. on, during
C. for, in
D. on, for
答案：B
下表是20世纪80-90年代苏联国民经济生产增长统计表。造成这一现象的内在根本原因是
| 年份 | 1981-1985 | 1986-1988 | 1989 | 1990 |
| 国民生产增长率 | 3．2% | 2．8% | 2．4% | -4% A．苏联长期执行高度集中的计划经济体制 B．美苏军备竞赛使苏联背上沉重经济包袱 C．苏联推行“休克疗法”，经济处于过渡期 D．戈尔巴乔夫改革失败导致苏联社会动荡 |