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【简答题】
工业上以大理石和赤铁矿(Fe 2 O 3 )为主要原料可以制取B和G，其转化关系如图所示，已知D、G的主要成分为单质。试回答下列问题： （1）写出工业制取的两种物质的化学式： B 、G 。 （2）写出下列反应的化学方程式： 反应②： ； 反应③： 。
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举一反三
【单选题】The contract is a clear violation of the original agreement- in particular of the international law.
A.
这份合同明显违反了新的协议，尤其是违反了国际的法律。
B.
这份合同清楚地违反了旧的协议，并违反了国际上的法律。
C.
这份合同清楚地违背了最初的协议，尤其国际法。
D.
这份合同显然违反了原来的协议，尤其是违反了国际法。
【简答题】听下面一段材料，回答第1至4题。 1. What does the woman want to learn? A. Political science. B. International relations. C. American literature. 2. What mistakes does the man often make in English? A. Pronunciation m...
【单选题】It can be inferred from the passage that the minimal basis for a complaint to the International Trade Commission is
A.
A foreign competitor has received a subsidy from a foreign government
B.
A foreign competitor has substantially increased the volume of products shipped to the United States
C.
A foreign competitor is selling products in the United States at less than fair value
D.
The company requesting import relief has been injured by the sale of imports in the United States
【单选题】The possessive pronoun 'their' in the last paragraph is used in place of ______.
A.
international agencies'
B.
higher taxes'
C.
finance ministers' and state treasurers' around the world
D.
smokers'
【单选题】It can be inferred from the passage that the minimal basis for a complaint to the International Trade Commission is which of the following?
A.
A foreign competitor has received a subsidy from a foreign government.
B.
A foreign competitor has substantially increased the volume of products shipped to the United States.
C.
A foreign competitor is selling products in the United States at less than fair market value.
D.
The company requesting import relief has been injured by the sale of imports in the United States.
E.
The company requesting import relief has been barred from exporting products to the country of its foreign competitor.
【单选题】In can be inferred from the passage that the minimal basis for a complaint to the International Trade Commission is which of the following?
A.
A foreign competitor has received a subsidy from a foreign government.
B.
A foreign competitor has substantially increased the volume of products shipped to the United States.
C.
A foreign competitor is selling products in the United States at less than fair value.
D.
The company requesting import relief has been injured by the sale of imports in the United States.
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