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【单选题】
________的责任是保证支付信息在公共网上传输的安全性。A.
数字证书
B.
认证中心
C.
支付网关
D.
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举一反三
【单选题】The passage shows that alchemy in the medieval time ______.
A.
established modern chemistry
B.
cured all the diseases
C.
turned base metals to gold
D.
was taken as somewhat justifiable
【单选题】The medieval church condemned man's partaking in ______ pleasures.
A.
educational
B.
ascetic
C.
asexual
D.
sensual
【简答题】The begins of the modern chemistry laboratory go back to the workrooms of medieval alchemists.
【单选题】The statement about the 'secularization of the medieval drama' refers to the ______.
A.
introduction of mundane matters in religious plays
B.
presentation of erudite material
C.
use of contemporary introduction of religious themes in the early days
D.
application of the medieval plays
【单选题】气相色谱用内标法测定A组份时,取未知样1.0μL,进样得组分A的峰面积为3.0cm2,组分B的峰面积为1.0cm2;取未知样2.0000g,标准样纯A组分0.2000g,仍取1.0μL进样,得组分A的峰面积为3.2 cm2,组分B的峰面积为0.8 cm2,则未知样中组分A的质量百分含量为( )
A.
0.1
B.
0.2
C.
0.3
D.
0.4
【单选题】朱子家训》中说:“黎明即起,洒扫庭除,要内外整洁。即昏便息,关锁门户,必亲自检点。„„”古人讲究从细节培养生活习惯,有了这些习惯,身体和精神就能保持起码的健康。这说明习惯影响人的( )
A.
思维
B.
工作效率
C.
行为
D.
身心健康
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