皮皮学，免费搜题
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搜题
【判断题】
在凯恩斯区域，投资增加使国民收入增加，利率不变。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 often will the woman correct the students' assignment? [A] Once a week. [B] Once two weeks. [C] Once a month. [D] Once three weeks.
【单选题】How often will the woman correct the students assignment?
A.
Once a week.
B.
Once two weeks.
C.
Once a month.
D.
Once three weeks.