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The euphemistic expressions might receive the same negative connotations that the original term had, so new expressions will be needed once again. A. 对 B. 错

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判断题
在丹丹成功完成整本书的阅读任务后，班主任表扬了丹丹，并表示相信丹丹以后会做的更好。从此以后，丹丹在阅读上更加有动力，最后成为一名评论员。这体现的理论是罗森塔尔效应。（ ）
单项选择题
The IS-LM Model presented in Appendix I of Chapter 16 implies which of the following?
A、Fiscal policy is effective in the short run.
B、A permanent increase in the money supply is more effective than a temporary increase.
C、The relationship between the exchange rate and the domestic output is negative.
D、Fiscal policy may be effective only with a temporary increase in government spending.
E、The exchange rate adjustment to a change in the home interest rate is permanent.
单项选择题
在实际情况下，金属和半导体接触，如何形成欧姆接触？
A．金属和重掺杂的半导体接触，使得半导体一侧的势垒很薄，电子的输运主要以隧道效应为主，形成欧姆接触
B．金属和p型半导体接触，形成空穴的反阻挡层，即为欧姆接触
C．金属和p型半导体接触，形成空穴的阻挡层，即为欧姆接触
D．金属和n型半导体接触，形成电子的阻挡层，即为欧姆接触
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