单项选择题

What is the recommended stock of coal（）

A.115 tons.
B.45 tons.
C.70 tons.

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填空题
Although sales at the beginning of the period were the same in both years, overall performance was better in the second year.（）
单项选择题
When will Mr Blackman come（）

A.August 23rd.
B.August 31st.
C.August 3rd.
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