单项选择题

（） their work will give us a much better feel for the wide differences between the two schools of thought.

A．To have reviewed
B．Having reviewed
C．Reviewing
D．Being reviewed

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单项选择题
During the process, great care has to be taken to protect the （） silk from damage.

A．sensitive
B．tender
C．delicate
D．sensible
单项选择题
The energy （） by the chain reaction is transformed into heat.

A．transferred
B．released
C．delivered
D．conveyed
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