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【单选题】
已知精馏塔的精馏段操作线方程为 ,塔顶蒸汽采用冷凝,操作条件下物系的相对挥发度为 2.0 ,则进入塔顶第一层理论板的气相组成为( )。
A.
0.975
B.
0.961
C.
0.980
D.
0.966
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【单选题】下列标号的句子中没有错别字且加点字的读音正确的一项是 ( ) 1 我开放性的院子适于心灵散步 , 眼睛旅行 , 也就是古人说的游目 骋 ( ch ě n ) 怀 ...... 2 每个夜暮深重的晚上 , 山下亮起灿烂的万家灯火 , 山上闪出疏 落 ( lu ò ) 的灯光 。 3 山下的灯把黑暗照亮了 , 山上的灯把黑暗照淡了 , 淡如烟 , 淡如雾 , 山也虚无 , 树也缥 缈 ( mi ǎ ...
A.
B.
C.
D.
【单选题】不属于 内脏组成部分的是( )
A.
消化系统
B.
泌尿系统
C.
呼吸系统
D.
脉管系统
E.
生殖系统
【简答题】阅读理解。 On Christmas Eve-the night before Christmas Day-children all over Britain put a stocking at the end of their beds before they go to sleep. Their parents usually tell them that Father Christmas w...
【单选题】患者,男,岁,打篮球时摔倒,手掌部皮肤擦伤,护士取用无菌生理盐水为其冲冼伤口35.护士在取用无菌溶液时,应首先检查
A.
瓶签是否合格
B.
瓶盖有无松动
C.
瓶口有无裂缝
D.
溶液有无变色
E.
溶液有无混浊、沉淀
【简答题】阅读下面短文 , 根据文章内容从下列各题的三个选项中选出一个最佳答案。 Do you celebrate Christmas on December 25th? Christmas Day is the birthday of Jesus Christ. On Christmas Eve, the night before Christmas, children are very happy. T...
【单选题】Today is Christmas Eve. The department store ______ be very crowded.
A.
has to
B.
need
C.
should
D.
had better
【单选题】Which one is the title for this passage?
A.
Christmas Eve in the United States of America.
B.
Christmas Day in the United Kingdom of Britain.
C.
Christmas Eve in the United Kingdom of Britain.
D.
Christmas Day in the United States of America.
【判断题】自从社会学引进中国之后,集镇便成为社会学研究对象。
A.
正确
B.
错误
【判断题】When Emily met Homer Barron she was less than 30 years old.
A.
正确
B.
错误
【简答题】On Christmas Eve, the night before Christmas Day, children all over Britain put a stocking at the end of their beds before they go to sleep. Their parents usually tell them that Father Christmas will ...
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