问答题

_______________ (出现了很多困难) as a result of the change over to a new type of fuel.

【参考答案】

Many difficulties have arisen
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单项选择题
Which of the following can be inferred from the passage
A．One should always be positive about invitations.
B．One should accept invitations at all costs.
C．One’’s presence is a way to show his emotion.
D．One’’s presence can mean a lot to others spiritually.
问答题
They carried on in spite of_________________________(条件极端困难).
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