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【判断题】
公共关系的主要目的是树立企业良好的形象。( )
A.
正确
B.
错误
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举一反三
【单选题】在短期,随着产量的增加,平均固定成本:
A.
先减少,后增加
B.
一直增加
C.
一直趋于减少
D.
先增加,后减少
【单选题】My mother has worked in this factory _____2 years.
A.
about
B.
for
C.
in
D.
since
【单选题】工程中常见的水硬性胶凝材料是()
A.
石灰
B.
石膏
C.
水玻璃
D.
水泥
【单选题】回转体动平面如图a所示,沿Y轴回转得到的轴测图是:
A.
(2)
B.
都不是
C.
(3)
D.
(1)
【单选题】回转体动平面如图a所示,沿Y轴回转得到的轴测图是:
A.
(3)
B.
(1)
C.
(2)
D.
none
【单选题】目前控制军团菌肺炎流行的措施是( )
A.
对医院供水系统和喷雾治疗器定期监测和消毒
B.
给免疫抑制患者服用免疫增强剂
C.
注射亚单位疫苗
D.
流行期间给易感者注射青霉素
E.
流行期间用乳酸熏蒸消毒居室空气
【单选题】The message the author wishes to convey in the passage is that______.
A.
human civilization remains glorious though it is affected by climatic changes
B.
mankind is virtually helpless in the face of the dramatic changes of climate
C.
man has to limit his activities to slow down the global warming process
D.
human civilization mill continue to develop in spite of the changes of nature
【单选题】CMYK颜色模式主要应用于( )行业。
A.
建筑
B.
电子
C.
机械
D.
印刷
【判断题】企业在生产耐用消费品时,应注重花色品种的变化更新,功能上要先进,更要注重品牌意识。
A.
正确
B.
错误
【单选题】The message the author wishes to convey in the passage is that _____.
A.
humans will become extinct if continue to destroy the nature
B.
man has to limit his activities to slow down environmental pollution
C.
human will continue to develop in spite of the changes of nature
D.
maintaining human life is a tough question but still can be solved
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