适合运输大宗商品的运输工具有()A、帆船 B、轮船 C、火车 D、飞机

题型:多项选择题

问题:

适合运输大宗商品的运输工具有()

A、帆船

B、轮船

C、火车

D、飞机

考点:经济学市场营销学市场营销学题库
题型:多项选择题

研究方法的选择:要了解青蛙与蟾蜍在外形上的异同,应采用的研究方法是下面是有关昆虫学家法布尔的介绍,请阅读,然后回答下列问题:

19世纪著名的法国昆虫学家法布尔是用观察法研究昆虫生活的第一位科学家。他是在“蓝色的天空下、蝉儿的歌声中”观察和研究它们本能的最高表现。只要天气晴好,法布尔就带上一把伞、一个放大镜、一支笔、一个记录本、一个面包和一个苹果,一大早就出发去观察,天黑时才返回家。他就是这样辛辛苦苦地工作着、探查着。他观察每一种昆虫都花去大量的时间,如观察土蜂20年、地胆过渡变态25年、隧蜂30年、蜣螂40年,最后写成著名的《昆虫记》,深受世界各地读者的喜爱。

(1)法布尔研究昆虫,主要采取了哪一种科学探究的方法?________________________。

(2)法布尔观察土蜂用了________年,观察蜣螂用了________年,请你试着分析一下,为什么用那么长的时间?____________。

(3)你从法布尔的科学研究工作中得到什么启示________________。

题型:多项选择题

阅读理解。

     Hong Kong-The visiting Chinese gold medal winners displayed (展示) their superb sports skills again in

Hong Kong on Saturday moming, whose performance impressed over 5, 000 Hong Kong spectators (观众)

face to face as well as tens of thousands of viewers through TV live broadcasts.

     The enthusiasm (热情) for the Olympic Games was rekindled (重新点燃) in Hong Kong as Chinese

mainland's Olympic gold medal winners on Saturday made their appearances and met the public. As part of

their visit to Hong Kong, they put on demonstrations (示范) of table tennis, badminton, diving and gymnastics.

     More than 5,000 people watched their performance, while tens of thousands of viewers watched the TV

live broadcasts at home or elsewhere.

     The gold medal winners also had exchanges with young Hong Kong athletes. Some of them took part in

the sports-for-fun activities with the gold medal winners in table tennis, badminton and gymnastics.

     China' s Olympic gold medal winners arrived in Hong Kong on Friday, starting their three-day visit to the

city. 

    "I hope the Hong Kong public can use this opportunity to share the joy and pride of their country," Hong

Kong Special Administrative Region' s Chief Executive Donald Tsang said.

     All the 63 gold medal winners from the Beijing Olympic Games took part in the flag-raising ceremony at

the Golden Bauhinia Square on Saturday morning.

     After the sports demonstration, they met the public at a Gala Show at the Hong Kong Stadium on Saturday

afternoon.

     The gold medal winners will leave for Macao on Sunday afternoon after visiting Disneyland and the Ocean

Park, two of Hong Kong' s famous theme parks.

1. We learn from the text that _____.

A. Chinese mainland' s Olympic gold medal winners stayed in HK for three days

B. 5,000 people watched the TV live broadcasts at home or elsewhere

C. China' s Olympic gold medal winners left Hong Kong on Friday

D. some gold medal winners took part in the flag-raising ceremony at the Golden Bauhinia Square

2. The underlined word "superb" ( Paragraph 1) probably means _____.

A. strange

B. simple

C. excellent

D. complex

3. Which of the following is NOT the one that Chinese mainland' s Olympic gold medal winners

     put on demonstrations?

A. Gymnastics.

B. Badminton.

C. Table tennis.

D. Tennis.

4. Which city will the Chinese mainland' s Olympic gold medal winners visit next?

A. Guangzhou.

B. Macao.

C. Shanghai.

D. Tianjin.

题型:多项选择题

蛋白酶水解时()

A.一级结构破坏 

B.二级结构破坏 

C.三级结构破坏 

D.四级结构破坏 

E.空间结构破坏

题型:多项选择题

下列哪项可引起局部水肿()

A.黏液性水肿

B.丝虫病

C.重度烧伤

D.肾病综合征

E.肝硬化

题型:多项选择题

将无刷同步交流发电机与柴油机曲轴同轴安装,就可以利用柴油机的旋转带动发电机的转子,利用()原理,发电机就会输出感应电动势,经闭合的负载回路就能产生电流。

A.电流磁效应

B.电磁感应

C.焦耳定律

D.诺顿定理

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