单项选择题

What’s one of the sources of oceanic salinity mentioned in the talk

A．Seaweed found in kelp(大海藻)beds.
B．Industrial waste.
C．Meteorties.
D．Underwater volcanoes.
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单项选择题
A．appreciateB．maintainC．affirmD．assert
A．appreciate
B．maintain
C．affirm
D．assert
单项选择题
Why is Ms. Connors angry
A．The women didn’t pay their rent on time.
B．She can’t fine anyone to repair the dishwasher.
C．She had to buy a new dishwasher.
D．Paula had some repairs done without her permission.
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