走同样一段路,小明用了10分钟,爸爸用了8分钟,小明和爸爸的速度比是4:5.__

题型:解答题

问题:

走同样一段路,小明用了10分钟,爸爸用了8分钟,小明和爸爸的速度比是4:5.______.

考点:整数,小数,分数,百分数和比例的复合应用题
题型:解答题

阅读理解

     Jiujiang Bridge is well-known in Guangdong. It lies between Jiujiang and Heshan. It's the main road to reach

Guangzhou. The bridge was built in September, 1985. It was finished about three years later. It is about l, 675

metres long and sixteen metres wide. The bridge is 80 metres high from the river. It is so busy every day. Over

two hundred cars cross the bridge per minute. But people never forget that day June 15th of 2007, when Jiujiang

Bridge was knocked down by a boat full of sand. At that moment the bridge was falling down, and four cars stopped

suddenly. Oh, my god! We hope the same thing won't happen again.

1. When was Jiujiang Bridge finished?

A. In 1988.

B. Before 1985.

C. In 1985.

D. After 2007.

2. How wide is the bridge?

A. 1, 675 metres.

B. 16 metres.

C. 60 metres.

D. 80 metres.

3. What happened to the bridge on June 15th, 2007?

A. It was rebuilt.

B. It was broken.

C.  It set up a new record.

D. Nothing happened.

4. If two hundred cars cross the bridge one minute, how many cars cross the bridge one day?

A. 28, 800.

B. 288, 000.

C. 4, 800.

D. 48, 000.

5. What's the boat full of?

A. Stones.

B. Sand.

C. Wine.

D. Cans.

题型:解答题

2008年下半年国际金融危机爆发后,我国经济面临着由通货膨胀转为通货紧缩、经济增长速度放缓的压力,为此,国家实施了刺激经济,促使经济回暖的措施。下列各项中属于政府可采取的预防和缓解通货紧缩的措施是

A.调整商品价格

B.提高利率

C.减少货币供应量

D.降低存贷款利率

题型:解答题

(10分)已知A、J为常见金属单质,常温下B为液体化合物,E是空气的主要成分之一,L是蓝色沉淀,H为红棕色气体;它们之间的转换关系如下图所示:

(1)H的化学式是________。

(2)③的化学方程式是__________________________________。

(3)⑥的离子方程式是_______________________________。

(4)F名称是________,检验此气体的方法是___________________________________。

题型:解答题

2小时25分合多少秒( )

A.8750秒

B.9650秒

C.8700秒

D.9700秒

题型:解答题

用木档拼钉模板时,木板的接头要错开位置,并要接在木档处。( )

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