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【多选题】
检查砷盐的基本原理是( )。A.
砷盐与锌.酸作用生成AsH3气体
B.
砷盐与锌、酸作用生成H2S气体
C.
比较供试品砷斑与标准品砷斑的颜色强度
D.
产生的AsH3气体遇溴化汞试纸生成砷斑
E.
比较供试品砷斑与标准品砷斑的大小
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【简答题】翻译: A tour arrangement is a detailed schedule or a suggested route for a journey.The tour arrangement is vital in the touring guiding.All of the activities must follow the tour arrangement which is dr...
【多选题】Parallelism is used in ________.
A.
It sells us instant gratification. It diverts us only to divert, to make the time pass without pain.
B.
Consider the casual assumptions that television tends to cultivate: that complexity must be avoided, that visual stimulation is a substitute for thought, that verbal precisio is an anachronism.
C.
Television’s variety becomes a narcotic, not a stimulus.
D.
Everything about this nation – the structure of the society, its forms of family organization, its economy, its place in the world – has become more complex, not less.
【简答题】正常人的血液 pH 值为 ,粘滞性是水的 倍。
【简答题】News 3 Questions 25 to 27 are based on the following news. (25) An estimated 500 , 000 piece of debris litter the Earth’s orbits as a result of man’s exploration of space. Some satellites have been hi...
【单选题】在国际贸易的支付中，以一般商业信用为基础，收款人以自己开出的汇票为凭证，委托第三者（银行）代为向在外国的付款人收款的支付方式是下列哪一种支付方式？（）
A.
信用证
B.
票汇
C.
托收
D.
电汇
【简答题】Read the passage carefully until you have got its main idea, and then select one appropriate word for each gap from the box. In the 21st century, clouds and stormy weather no longer automatically brin...
【单选题】在信用证支付方式下，下列关于银行的职能表述不正确的是（）。
A.
开证行承担第一性付款责任
B.
若开证行倒闭，议付行无权向受益人追索
C.
若开证行倒闭，付款行无权向受益人追索
D.
偿付行只替开证行偿还垫款，不负责审单
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