问题 单项选择题

白开水是由自来水煮沸而来的,其主要成分是水,其中还包含多种矿物质和一些人体需要量极少的微量元素。如钠、钾、钙、镁、锌、铁、铜、铅、氟、碘和硒等。矿物质和微量元素是人体必需的营养素,不能缺乏,但也不能过多。自来水所含的矿物质为矿泉水的1/10,又是纯净水的10倍。矿泉水的矿化度一般为200~300毫升/升,自来水为20~30毫升/升,而纯净水只有2~3毫升/升。有关研究表明,自来水中的矿物质和微量元素的含量对人体来说是最适宜的。
这段文字意在说明( )。

A.自来水含有多种矿物质和微量元素
B.矿泉水的矿物质含量最高,最有利于人体健康
C.白开水是最适宜于人体健康的饮用水
D.矿物质和微量元素对人体至关重要

答案

参考答案:C

解析: 文段通过对白开水中矿物质和微量元素的介绍以及与矿泉水、纯净水的对比,指出白开水对人体是最适宜的。A、D两项本身表述正确,但没有指出对人体最适宜;矿物质的含量并非越多越好,B项错误。故选C。

多项选择题
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Friends and Buddies

This program is planned for teenagers who have special needs with the goal of meeting within a community with other peers(同龄人). The purpose of the program is that it will lead to a better understanding of friendships. Gym, Swim, Surprise Guest, and Pizza are included. Ages 12-18, numbers of members are limited. Contact: Gloria Bass. This program is held 2 Fridays per month. Fees: $65/$85

Club Saturday Swim

This program is available to anyone aged 5-14 who is challenged by mental, physical, or emotional trouble. The program will be held each Saturday afternoon, 12:00-12:30 pm or 12: 30-1:00 pm. Fees: $136/$260

Sibshops (Ages 10-13)

Sibshops is a program for siblings(兄弟姊妹) of children with challenges. It includes group activities and talk treatment ways with the focus on improving sibling relationships and whole family happiness. Location: Hope Church, Wilton CT. Wednesday: 4:00-5:00 pm. Fees: $50/$65

Banana Splits

Banana Splits is an educational support group for children in family trouble. Children aged 9-13 will have the opportunity to meet other children whose parents have separated or divorced, learn to recognize feelings, think of healthy coping skills and have a place to share their struggles through verbal(语言的), physical, and artistic experiences. Location: Hope Church, Wilton CT. Tuesday:4:30-5:30 pm. Fees: $50/$65

66. If you have free time only on Saturday, you can go to ______.

A. Friends and Buddies    B. Club Saturday Swim

C. Sibshops (Ages 10-13) D. Banana Splits

67. Activities on how to lead to a better understanding of friendships are held ______.

A. 2 Fridays per month    B.12:00-12:30 or 12:30-1:00, Saturday afternoon

C.4:00-5:00 pm, Wednesday   D.4:30-5:30 pm, Tuesday

68. If you go to Sibshops (Ages 10-13) , you can ______.

A. meet with other peers         B. solve your mental problem

C. improve sibling relationships       D. think of healthy coping skills

69. Which of the following is TRUE according to the four passages?

A. They are all in the same place.   B. They are all free of charge.

C. They all hold activities each week.      D. They are all intended for children.

70. The purpose of this passage is to ______.

A. help children deal with their trouble   B. encourage children to be happy and brave

C. list some problems children meet with       D. advertise some programs for children