题型:名词解释 在4℃时向100mL水中溶解了22.4L HCl气体(标准状况下测得)后形成的溶液。下列说法中正确的是( )A.该溶液物质的量浓度为10 mol/LB.所得溶液的体积为22.5 LC.根据题干数据,该溶液物质的量浓度无法求得D.该溶液中溶质的质量分数因溶液的密度未知而无法求得 查看答案
题型:名词解释 Reading Comprehension. Take Action for a Better World: Volunteers Needed Six months' preparation in Denmark: Africa studies, team work combined with social work with risk group teenagers. Six months' community work in Malawi in People to People Projects: Child Aid, HIV / AIDS. Fights and Teacher Training. Qualifications: 18 years, hard working and social engagement. Please contact us by e-mail: takeaction@betterworld.com. Part-time work with Exchange Students YOUTH International is a non-profit high school foreign exchange students organization. We welcome teenagers from over 80 countries worldwide and provide host families. The communityRepresentative is a part-time position designed for people with a strong desire to do somethingrewarding in the community and earn some extra money. Applicants best suited for this work should enjoy teenagers, have a strong interest in cross-cultural communication and feel comfortable networking. Full training and support will be provided through branch offices throughout the US. Positions available in most states. If interested, please email staff@youth.org or call 888-123-9872. International Summer Job Hi, I'm an ESL student in China. I'm 20, quiet and polite, and I speak reasonable English. I'mlooking for a summer job in an English-speaking country. I can teach Chinese or do house and garden work and cook Chinese dished. Can anybody offer me a job? I don't need to earn much,just enough in two months (July-August) to pay for my return ticket to China. My goal is toimprove my English and see a bit more of the world. My email is: ram3462@hotmail.com. Call for Native Speaker of English I am looking for native speakers of English to join in an experiment. This experiment is carried out over the Internet. You don't need any specific knowledge other than understanding and speaking English at a native level. The first task will take you around 15 minutes. After thistask, you can decide whether you want to continue the experiment. The tasks involve readingtexts and designing questions and answers. If you are willing to help me, then please email us: club3864@hotmail.com1. Who is suitable to work as a Community Representative in YOUTH International? [ ]A. One who enjoys working with teenagers from different countries.B. One who hopes to take action in fighting against diseases. C. One who has a strong desire to improve his or her English. D. One who wants to earn some pocket money in the program. 2. Where will jack, a volunteer, receive the training before he is sent to work in Malawi? [ ]A. In some local offices in the US. B. In an ESL organization in China. C. In a preparation program in Demark.D. In an exchange student center in Africa. 3. Mrs. Black in the US hopes to learn some Chinese at home, she may contact _____. [ ]A. takeaction@betterworld.com B. ram3462@hotmail.com C. club3864@hotmail.com D. staff@youth.org 4. What are volunteers for an experiment over the Internet supposed to do? [ ]A. To interview people online. B. To do some housework. C.To offer advice on Child Aid. D. To provide language exercises. 查看答案