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【单选题】
维生素C能与硝酸银试液反应生成去氢抗坏血酸和,是因为分子中含有( )A.
环己烯基
B.
C.
D.
烯二醇基
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
【简答题】The situation today is obviously quite different from ________ it was only 50 years ago. A) such B) which C) when D) what
【单选题】市场经济是指由市场调节的价格支配资源的配置和使用，而价格能否有效发挥作用，主要取决于( )。
A.
对经济的调节能力
B.
是通过竞争形成的
C.
经济理论是否能对实践变化做出正确的预测和客观分析
D.
各生产部门是否按社会必要劳动时间进行生产
【单选题】The situation today is obviously quite different from ______ it was 50 years ago.
A.
what
B.
when
C.
which
D.
such
【单选题】The situation today is obviously quite different from ______ it was only 50 years ago.
A.
which
B.
what
C.
when
D.
such
【简答题】The situation today is obviously different from ______ it was only 50 years ago.
【简答题】The situation today is obviously quite different from ________ it was only 50 years ago. A) what B) which C) when D) such
【单选题】资源配置的市场机制是指市场经济体制中，通过（）信号的导向作用以及资源产权的转让实现市场经济主体之间相互利益的调整进而达到配置资源。
A.
市场
B.
价格
C.
行政
D.
法律
【简答题】The ________ stage has been reached and we must do something to change the situation todayA. critical
【单选题】The situation today is obviously different from it was about 30 years ago.
A.
what
B.
when
C.
which
D.
such
【简答题】资源配置是通过( )进行的,而市场价格是由需求和供给这两个方面的相互作用而决定的。
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