抑郁症的主要症状为（） A.思维迟缓 B.情感低落 C.食欲紊乱 D.注意力不集中 发布时间：2020-11-22 18:28 │ 来源：www.tikuol.com 题型：单项选择题 问题： 抑郁症的主要症状为（）A.思维迟缓B.情感低落C.食欲紊乱D.注意力不集中E.言语动作不减少
题型：单项选择题 社会主义初级阶段是我国社会主义不可逾越的一个历史阶段，这是因为( )。A．我国社会主义脱胎于半封建、半殖民地社会B．我国生产力发展水平远远落后于发达的资本主义国家C．要实现社会主义工业化和经济的社会化、市场化和现代化D．它反映了社会主义社会必须经历的起始阶段E．它需要经历一个相当长的历史时期，大约需要一百年的时间 查看答案
题型：单项选择题 具有△αβ-γ-内酯环的强心苷元，在UV光谱中的最大吸收是（）A．217～220nmB．270～278nmC．295～300nmD．300～330nmE．217～220nm，270nm 查看答案
题型：单项选择题 阅读理解。阅读下面短文，请根据短文的要求答题。（请注意问题后的字数要求） In the United States, friends can be close, constant, intense, generous, and real, yet fade away in a shorttime if circumstances change. Neither side feels hurt by this. Both may exchange Christ- mas greetings for a year or two, perhaps a few letters for a while then no more. If the same two people meet again by chance, even years later, they pick up the friendship where it left out and are de- lighted. In the United States, you can feel free to visit people's homes, share their holidays, enjoy their lives without fear that you are tak ing on a lastinS obligation (负担). Do not hesitate to accept hospi tality (热情款待) because you can't give it in return. No one will expect you to do so for they know you are far from home. Americans will enjoy welcoming you and be pleased if you accept their hospi tality easily. Once you arrive there, the welcome will be full, warm and re al. Most visitors find themselves readily invited into many homes there. In some countries it is considered inhospitable to entertain (招待) at home, offering what is felt as only home-cooked food, not " doing something for your guest". It is felt that restaurant entertaining shows more respect and welcome. Or for other different reasons, such as crowded space, language difficulties, or family custom, out- siders are not invited into homes. In the United States, both methods are used, but it is often considered more friendly to invite a person to one's home than to go to a public place, except in purely business relationships. So, if your host or hostess___,do not feel that you are being shown inferior (差的,低级的 ) treatment. Don't feel neglected (被轻视的) if you do not find flowers a- waiting you in your hotel room, either. Flowers are very expensive there, hotel delivery is uncertain, arrival times are delayed, changed, or canceled(取消)-so flowers are not customarily sent as a welcoming touch. Please do not feel unwanted! Outward signsvary in different lands, the inward welcome is what matters, and this will be real. 1. What's the best title of the text? ( Please answer within 5 words. ) ________________________________________________________________________________________2. Which sentence in the text is similar in meaning to the following one? Americans gladly continue their friendships after a chance encounter even if several years have passed. _________________________________________________________________________________________3. Fill in the blank in the fourth paragraph with proper words. ( Please answer within 6 words. ) __________________________________________________________________________________________4. For what purpose does the writer mention flowers in the last par agraph? ( Please answer within 15 words. ) _________________________________________________________________________________________5. Translate the underlined part in the second paragraph into Chi nese. _________________________________________________________________________________________ 查看答案