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【简答题】
进给伺服电机编码器脉冲计数错误报警如何处理?
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皮皮学刷刷变学霸
举一反三
【单选题】Which of the following statements is true?
A.
If new firms are struggling to obtain funds from underdeveloped financial markets, the most efficient policy solution would be to offer a production subsidy to these firms.
B.
If the government’s goal is to induce early production even when the new firms are not cost-competitive by world standards, a barrier to the import of a substitute of the product produced by these firms would be an ideal policy.
C.
If young firms are struggling to retain their trained workers, then government should offer a subsidy to offset the costs of training workers.
D.
If the domestic firms do not supply anything at the world price, the government should lower the import barriers to boost domestic production.
【单选题】迷走神经对胰腺分泌的调节是( )
A.
引起酶多、水和HCO3-少的分泌
B.
引起水、HCO3-多而酶少的分泌
C.
引起水、HCO3-和酶均多的分泌
D.
无明显的促进作用
E.
起明显的抑制作用
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