单项选择题

A．By sending water directly back to the sea with great force.
B．By reducing wave energy.
C．By reducing beach width.
D．By stabilizing beachfront construction.
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单项选择题
A．Members have a narrow range of topics to discuss.B．Members bring up the most important issue.C．Members have little knowledge.D．Members have interesting topic.
A．Members have a narrow range of topics to discuss.
B．Members bring up the most important issue.
C．Members have little knowledge.
D．Members have interesting topic.
单项选择题
A．It’s now taught with the aid of computers.B．It isn’t considered as important today as it was in the past.C．Children today learn it earlier than those did in the past.D．A lot of time is spent teaching it.
A．It’s now taught with the aid of computers.
B．It isn’t considered as important today as it was in the past.
C．Children today learn it earlier than those did in the past.
D．A lot of time is spent teaching it.
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