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【多选题】
水草缸中二氧化碳的主要作用是什么？A.
光合作用
B.
调节酸碱度
C.
让高难度的水草更好地生长
D.
使水中的重碳酸盐和碳酸盐的组成维持一个定值
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】听力原文：M: You're redecorating your apartment, aren't you? How is it coming along? W: Oh, I'm just taking it one step at a time. Q: What does the woman imply? (16)
A.
She has finished only one step.
B.
She doesn't have any more time for redecorating.
C.
The work has been completed.
D.
The redecorating is being done gradually.
【单选题】听力原文：M: Janis, you're redecorating your apartment, aren't you? How is coming alone? W: I'm just taking it one step at a time. Q: What does the woman imply? (16)
A.
She has finished only one step.
B.
She doesn't have any more time for redecorating.
C.
It's time for the work to be finished.
D.
The redecorating is being done gradually.
【单选题】查看材料
A.
Redecorating her office．
B.
Majoring in interior design．
C.
Seeking professional advice．
D.
Adding some office furniture．
【简答题】A．The rent. B．Redecorating the flat. C．How they can use the extra room. D．There is no landlady.
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