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【单选题】
石灰的最主要技术指标是( )。A.
活性氧化钙含量
B.
活性氧化镁含量
C.
活性氧化钙和氧化镁含量
D.
碳酸钙含量
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举一反三
【单选题】Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you ...
A.
Cereal.
B.
Coffee or tea.
C.
Sandwich.
D.
Dessert.
【简答题】Directions: This exercise practises skimming and scanning-- that means reading very fast to find only the main ideas of a text. You will have only five minutes to read the text and identify the main i...
【单选题】Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you ...
A.
Old people.
B.
agers.
C.
Infants.
D.
s.
【单选题】Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you ...
A.
Ancient.
B.
Complexity.
C.
Individualistic.
D.
Homogeneous population.
【单选题】Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you ...
A.
A man should walk on the left of a woman.
B.
People eat with both hands in some countries but eat with one hand in other countries.
C.
Americans and British have a large number of different customs.
D.
People should leave one hand on their lap while eating.
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