【单选题】诊断主动脉瓣狭窄最重要的体征是:
D.
主动脉瓣区收缩期喷射性杂音伴第二心音减弱或消失
【单选题】收集数据时,设计调查的问题很重要。此时,需要注意的原则不包括( )
【单选题】Refer to Table 2.2. According to the principle of absolute advantage, Japan should:
D.
None of the above; there is no basis for gainful trade
【单选题】20130208收集数据时,设计调查的问题很重要。此时,需要注意的原则不包括(8)
【单选题】收集数据时,设计调查的问题很重要。此时,需要注意的原则不包括(8)
【单选题】Refer to Table 2.2. With international trade, what would be the maximum amount of steel that South Korea would be willing to export to Japan in exchange for each VCR?
【单选题】Refer to Table 2.2. According to the principle of comparative advantage:
A.
South Korea should export steel
B.
South Korea should export steel and VCRs
C.
Japan should export steel
D.
Japan should export steel and VCRs
【判断题】党的十九大报告指出,必须树立和践行绿水青山就是金山银山的理念。这表明经济的发展必须优于生态文明建设。