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地球是生命的摇篮,分析地球的宇宙环境和地理环境的特点与生命物质存在条件的关系,组合正确的是: ①地球磁场             a.地球表面存在大气层 ②地球的质量与体积     b.削弱到达地面的紫外线 ③地球与太阳的距离     c.使水经常能处于液体状态 ④地球大气中的臭氧层   d.导致高纬度地区多出现“极光” A ①-b                    B ②-a C ③-c                    D ④-d
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【单选题】As a reliable travel agency, we really do try to describe our centers and accommodation as realistically as possible. All our Super Centers and Main Centers have been extensively investigated during t...
A.
it were less truthful
B.
it used fewer superlatives
C.
it eliminated description
D.
it were more encouraged
【单选题】Nowadays, with increasing numbers of people living in cities, we _as a result__ eat more meat.( as a result)
A.
结果
B.
参加
C.
醒来
【单选题】__As a result___, we are using more land and resources to actually produce less food.( As a result)
A.
建立
B.
掌握
C.
结果是
【单选题】连续大量使用导致球后视神经炎的药物有
A.
异烟肼
B.
利福平
C.
链霉素
D.
乙胺丁醇
E.
对氨基水杨酸
【判断题】振动物体的速度与位置有关,在最大位移处,速度为零; 在平衡位置处,速度最大。
A.
正确
B.
错误
【单选题】连续大量使用导致球后视神经炎的药物( )
A.
乙胺丁醇
B.
利福平
C.
链霉素
D.
异烟肼
E.
对氨基水杨酸
【单选题】As a reliable travel agency, we really do try to describe our centers and accommodation as realistically as possible. All our Super Centers and Main Centers have been extensively investigated during t...
A.
helpful fault-finding by customers
B.
attractive description of the centers in every brochure
C.
a standard policy of prompt repayment
D.
careful control of the hotels
【单选题】连续大量使用导致球后视神经炎的药物有
A.
异烟肼
B.
利福平
C.
链霉素
D.
乙胺丁醇
E.
吡嗪酰胺
【单选题】As a reliable travel agency, we really do try to describe our centers and accommodation as realistically as possible. All our Super Centers and Main Centers have been extensively investigated during t...
A.
the year before last
B.
three years ago
C.
between 1975 and 1976
D.
within the last three seasons
【判断题】城轨列车在正常运行的情况下,不论是自动驾驶还是手动驾驶都离不开ATP系统,但手动驾驶可以不需要ATO
A.
正确
B.
错误
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