皮皮学，免费搜题
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搜题
【单选题】
经济学主要是研究( )A.
经济相关问题
B.
与稀缺性相关的问题
C.
如何有效投资
D.
用数学方法建立理论模型
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】With a lot of work _______, I can’t watch TV tonight.
A.
doing
B.
to do
C.
done
D.
to be done
【单选题】With a lot of work __________, our manager couldn’t spare time for a holiday.
A.
remained to be done
B.
remaining to be done
C.
remained being done
D.
remaining to do
【单选题】With a lot of work _______, I can’t go to the cinema with you after school
A.
done
B.
doing
C.
having done
D.
to do
【简答题】奥苏贝尔提出有意义学习过程的实质就是符号所代表的新知识与学习者认知结构中已有的适当观念建立 _____和_____ 的联系。
【单选题】With a lot of work ______, she weren't allowed to leave her office.
A.
do
B.
done .
C.
to be done
D.
to do
【单选题】With a lot of work _______, I can’t help you tonight.
A.
do
B.
doing
C.
done
D.
to do
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