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【单选题】
一放在光滑水平面上的弹簧振子,振动的周期 ,如果小球经过平衡位置时,动能为 ,则再经过 的动能 与 之比为A.
1:4
B.
1:1
C.
D.
1:2
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【简答题】According to research, what has reduced the protein content in wheat? What did the Chicago Council on Global Affairs suggest the U.S. should do? Why did agricultural industry leaders and policymakers ...
【单选题】The central bank in the United States, the ______, is responsible for ______.
A.
Central Reserve Bank; regulating the stock market
B.
Federal Reserve Bank; the conduct of monetary policy
C.
Federal reserve Bank; regulating the stock market
D.
Central Reserve Bank; the conduct of monetary policy
【单选题】What did the man do for his grandmother?
A.
He told his grandmother funny stories.
B.
He taught his grandmother how to use electronic gadgets.
C.
He cleaned up his grandmother's apartment.
D.
He helped his grandmother move to Washington
【简答题】某公司是一家上市公司, 2018年的相关资料如下: 单位:万元 资产 金额 负债及所有者权益 金额 货币资金 10000 短期借款 3750 应收票据及应收账款 6250 应付票据及应付账款 11250 存货 15000 预收款项 7500 固定资产 20000 应付债券 7500 无形资产 250 股本 15000 留存收益 6500 资产合计 51500 负债及所有者权益合计 51500 该公...
【单选题】If the central bank purchases government securities directly from a commercial bank, bank excess reserves will immediately______.
A.
fall by a multiple of the purchase
B.
fall by an amount equal to the purchase
C.
rise by a multiple of the purchase
D.
rise by an amount equal to the purchase
【简答题】中央银行(central bank)
【单选题】图形信息是简洁的语言,也是最易识别和记忆的信息载体。这句话是指下面哪个特征?
A.
艺术性和实用性
B.
审美性和趣味性
C.
直观性和大众化
D.
时效性和经济性
E.
创造性和制约性
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