利用分光光度法测定某一物质，若除待测组分外，显色剂和其他试剂_爱下问搜题

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问题单项选择题 A1型题

利用分光光度法测定某一物质，若除待测组分外，显色剂和其他试剂在测定条件下也有吸收时，应选择的空白溶液为（）

A.试样空白

B.试剂空白

C.溶剂空白

D.蒸馏水

答案

参考答案：B

阅读理解

阅读理解。

The five clearest role-related behaviours of travellers (in order of relative importance )

Tourist	takes photos, buys souvenirs, goes to famous places, stays briefly in one place, does not understand the local people
Traveller	stays briefly in one place, experiments with local food, goes to famous places, takes photos, explores places privately
Holidaymaker	takes photos, goes to famous places, is separated from the local society, buys souvenirs, contributes to the visited economy
Jet-setter	lives a life of luxury (奢侈) , concerned with social status, seeks physical pleasures, prefers communicating with people of his/her own kind, goes to famous places
Businessperson	concerned with social status, contributes to the economy, does not take photos prefers interacting with people of his/her own kind, lives a life of luxury
Conservationist	interested in the environment, does not buy souvenirs, does not exploit the local people, explores places privately, takes photos
Explorer	explores places privately, interested in the environment, takes physical risks, does not buy souvenirs, observes the visited economy
Overseas student	experiments with local food, does not exploit the people, takes photos, observes the visited society, takes physical risks
International athlete	is not separated from their own society, does not exploit the local people, does not understand the local people, explores places privately, searches for the meaning of life
Overseas journalist	takes photos, observes the visited society, goes to famous places, takes physical risks, explores places privately

1. Which of the following behaviors do Tourist, Traveler and Holidaymaker share?

A. Stay briefly in one place.
B. Buy souvenirs.
C. Go to famous places.
D. Explore places privately.

2. We can learn that overseas students .

A. are curious about the society they visit
B. like to do experiments with local food
C. take photos as their teachers have instructed
D. enjoy taking physical risks because they are brave

3. According to the passage, which of the following is true?

A. Three groups are interested in exploring places privately
B. More than two groups live a life of luxury.
C. Six groups are fond of taking photos.
D.Two groups don't like buying souvenirs.

4. The sentence "businessperson prefers interacting with people of his/her own kind" means
that ______.

A. he wants to be loved by people of his kind.
B. he loves quarrelling with people of his kind
C. he wants to make good friends with people of his kind.
D. he wants to talk with people of his kind and understand each other.

选择题

阿拉伯人对世界文化的传播与交流作出了重要贡献有 [ ]

A．传播了中国的四大发明

B．传播了印度人创造的0到9的计数法

C．传播了伊斯兰教

D．阿拉伯人写的《马可·波罗行纪》激起了欧洲人对东方的憧憬和向往