下列各句中，加点的成语使用不恰当的一项是(3分)   

如图所示弹簧测力计下挂着一条形磁铁，L是电磁铁．闭合开关S，待弹簧测力计示数稳定后，再缓慢向a端移动滑动变阻器的滑片P．在这一过程中，下列说法正确的是（   ）

下列各组城市中，既是省级行政中心，又是铁路枢纽的是：（  ）

阅读下面材料，从每题所给的A、B、C、D四个选项中选出最佳选项。

A

    Today is Sunday, April 15th, everyone in Sheep Village（羊村）is very busy. What does he/she do?

    I'm Nuan Yangyang. I write a letter to my friend at one o'clock in the afternoon. Then I do my homework.

    I'm Fei Yangyang. I want to be strong（强壮的），so I go to the sports club to play sports in the morning. I go home at three ten in the afternoon.

    I'm Lan Yangyang. I like eating. I have breakfast at home. I have lunch in a restaurant. But the food isn't good, I don't like it.

    I'm Mei Yangyang. I go to a clothes store at nine in the morning. The clothes there are on sale, so I buy a nice skirt.

    I'm Xi Yangyang. I take the bus to the English club at ten sixteen in the morning. There I help two kids learn to speak English.

针对2010年夏末秋初搞得沸沸扬扬的郭德纲事件，央视以排比句称郭德纲为“三俗”的典型代表。******在推进文化体制改革会议上公开提出要“坚决抵制庸俗、低俗、媚俗之风”，这是中央最高层首次明确强调抵制“三俗”之风。以下对材料分析正确的有
①不同文化艺术形式共同发展，可以满足不同层面大众的需求 ②文化市场的自发性和传媒的商业性是“三俗”之风盛行的重要原因 ③扶持高雅文化艺术、适当限制通俗文化艺术是当务之急 ④抵制“三俗”风必须加强精神文明建设，构建社会主义核心价值体系