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【单选题】
水质硬度通常以水中哪两种离子的总含量来衡量( )A.
钙、铁离子
B.
钙、镁离子
C.
钙、铝离子
D.
铁、镁离子
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反馈参考答案：
举一反三
【简答题】中央反“四风”是指哪“四风”？
【简答题】反对“四风”是指什么?
【单选题】Which phrase has the same meaning as something that is similar to what someone is talking about?
A.
give someone a line
B.
along the same lines
C.
read between the lines
【单选题】I can’t stand ________ with Jane in the same office. She just refuses ________ talking while she works.
A.
working ; stopping
B.
to work ; stopping
C.
work ; stop
D.
working ; to stop
【单选题】国家秘密和企业商业秘密的密级分别为( )。
A.
绝密、机密、秘密三级，企业机密、企业秘密两级
B.
绝密、机密、秘密三级，企业机密一级
C.
绝密和机密两级，企业秘密一级
D.
秘密和机密两级，企业机密一级
【单选题】I can't stand ______ with Jane in the same office. She just refuses ______ talking while she works.
A.
working stopping
B.
to work stopping
C.
working to stop
D.
to work to stop
【简答题】反”四风“是指?
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