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问题
单项选择题
目前钻井工程对油气层常用的完井方法有（）大类。
A、1
B、2
C、3
D、5
答案
参考答案：B
填空题
CONVERSATION 2 (Questions 5-8)
The reason the customer wants to give her daughter a history book: A
(5)
present.
The customer may want to buy a history book about a
(6)
period.
How much does the book cost
(7)
The daughter’s birthday is not
(8)
next month anyway.
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名词解释
骨髓
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