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【判断题】
废水的一级处理主要采用的是化学处理。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】How did she react to the words from her children after she received the plant?
【多选题】进口商对未来进口付汇的保值,可以采用:
A.
买进远期外汇
B.
卖出远期外汇
C.
外汇期货的多头套期保值
D.
外汇期货的空头套期保值
E.
外币看涨期权
F.
外币看跌期权
【简答题】How did the woman react to Tom's idea? [A] She wonders if she can afford it. [B] She doesn't want to bother Tom's roommate. [C] She thinks it won't work. [D] She thinks it's a good one.