一般认为，净资产收益率越高，企业自有资本获取收益的能力越强，运营效益越好，对企业投资

No one can change the weather. Nobody can control the weather. But if we read correctly the signs around us, we can tell what the more important changes in the weather will be. This way of telling what the weather will be like on the following day or two is called weather forecasting.

For many centuries and in all countries, people have studied the weather and tried to make weather forecasting. Rings around the sun are a sign of coming rain. That many people feel their joints(关节) hurt is a sign of wet weather. Some birds fly high if fine weather is coming, but they fly near the ground if rainy or stormy weather is on the way. If you see a rainbow during rainy weather, this is a sign that the weather will become clear and fine. Such rainbows come in the evening. If the stars twinkle clearly at night, then fine weather will continue. If a fog appears in the morning just above a river, then the day will be warm. If the sunset is mostly red in colour, then the following day will be fine. If a rainbow appears in the morning, rainy weather will probably come.

Most of the above sayings have been made by the people who have used their eyes and brains to make weather forecasting.

小题1:Which of the following can be used here to replace(取代) the underlined phrase “on the way”?

A．away

B．gone

C．disappearing

D．coming小题2:When you see the stars twinkle clearly at night, the weather will be_________.

A．warm

B．rainy

C．clear and fine

D．cold小题3:Which of the following signs can tell the weather will probably be rainy?

A．A rainbow appears in the morning.

B．Some birds fly high.

C．The stars twinkle clearly at night.

D．Fogs appear in the morning just above a river.小题4:Which of the following is NOT TRUE according to the passage?

A．Nobody can control the weather.

B．If the sunset is red in colour, then the next day will be fine.

C．If many people feel their joints hurt, it may be a sign of wet weather.

D．People only use their eyes and brains to make weather forecasting.小题5:Which of the following sentences can suitable according to the passage?

A．活到老，学到老。

B．朝霞不出门，晚霞行千里。

C．早起的鸟儿捉虫多.

D．一日之计在于晨。

绝大多数生物是由细胞构成的，但下列四项中有种生物例外，它是（　　）

A．含羞草

B．狮子

C．蘑菇

D．流感病毒

丁二酮肟-正丁醇萃取分光光度法测定大气固定源中镍时，将样品溶液用丁二酮肟-正丁醇萃取分离后，在（）溶液中，碘存在下，镍与丁二酮肟作用，形成酒红色可溶性络合物，进行分光光度测定。

A.氨

B.酸

C.水

非关税壁垒是除关税措施以外的一切直接或间接限制外国商品进口的法律和行政措施，下列制度中属于非关税壁垒的有（）。

A.原产地原则

B.许可证制度

C.配额

D.外汇管制

E.数量限制

我国古代学术思想最为开放，流派创建最为众多的黄金时代是（）

A、春秋战国

B、秦汉

C、三过两晋

D、南北朝