正确答案: C

参与制

题目：金融寡头通过掌握一定数量的股票(股票控制额)来层层控制企业的制度是

解析：C

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举一反三的答案和解析：

[多选题]证券交易的特点是

流动性

收益性

风险性

解析：BCD

[单选题]疟疾症见寒多热少,休作有时,其治法是

和解表里,温阳达邪

[单选题]根据下列文章，回答31～35题。During the past generation， the American middle-class family that once could count on hard work and fair play to keep itself financially secure has been transformed by economic risk and new realities. Now a pink slip， a bad diagnosis. or a disappearing spouse can reduce a family from solidly middle class to newly poor in a few months.In just one generation， millions of mothers have gone to work， transforming basic family economics. Scholars， policymakers， and critics of all stripes have debated the social implications of these changes， but few have looked at the side effect family risk has risen as well. Today's families have budgeted to the limits of their new two-paycheck status. As a result they have lost the parachute they once had in times of financial setback- a back-up earner （usually Mom） who could go into the workforce if the primary earner got laid off or fell sick. This “added-worker effect” could support the safety net offered by unemployment insurance or disability insurance to help families weather bad times. But today， a disruption to family fortunes can not longer be made up with extra income from an otherwise-stay-at-home partner.

they are more vulnerable to changes in family economics.

[多选题]建设中国特色社会主义必须坚持全心全意依靠工人阶级的方针，是由以下因素决定的

工人阶级的特点

工人阶级的历史地位

工人阶级的阶级属性

解析：BCD

[单选题]女性，25岁，发热、乏力及皮下出血点2月余，血常规白细胞110×109/L，单核细胞0.95，以下哪项检查有助于诊断此病人是急性粒细胞白血病，而非急性淋巴细胞白血病?

未成熟细胞过氧化物酶和苏丹黑染色阳性

[单选题]时空会随着物质运动的速度的变化以及物质形态的改变而改变，这表明（ ）

具体事物的时空特性是可以变化的

解析：本题中的说法正是时空相对性的含义，它表明了时空妁具体特性是可以变化的，但不能说明时空的客观性会改变，因此，正确选项为B。