服盐类泻药引起腹泻的原因是（）

[单选题]Exports are either raw materials or manufactured goods. Raw materials are products of the land， such as cotton， timber or rubber. Some raw materials， such as iron ore， come from mines. These raw materials are often exported by the countries that produce them to other countries where they are made into manufactured goods. Some countries produce food for export， for example， meat， sugar， or cereals such as wheat and maize. These countries are agricultural countries. An agricultural country needs fertile land and a good climate. A cold， dry climate is not suitable for agriculture. A country which produces manufactured goods is known as an industrialized country. An industrialized country cannot always produce enough food for its own needs. In this case， it does not export foodstuffs. Instead it has to import them. It relies on exports of manufactured products and pays for imports with the money it earns from the exported goods. From the first sentence of the passage we can know that there are（）kinds of exports.

[多选题]界定通信市场的核心要素有（　　）。[2010年真题]

[填空题]表示粒度分布的方法有：（）法、（）法和（）法。

[多选题]8086CPU进入中断服务程序前，CPU自动把（）压入堆栈。

[名词解释题]政治哲学

[单选题]甲、乙、丙、丁相约勤工俭学。下列未经著作权人同意使用他人受保护作品的哪一行为没有侵犯著作权？（　　）[2015年真题]

[单选题]固阴煎用于治疗（　　）。

[多选题]民间非营利组织的下列收入中，属于非交换交易收入的有（）。

[单选题]治疗寒湿痹痛，腰以下明显者，应选的最佳药物是（）

[判断题]微粉的休止角大，流动性好。

慢性胃炎的表现症状

慢性腹泻的表现症状是什么？

什么是尿崩症？

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