符合送修条件的发动机总成进厂大修时,应贯彻()的原则,准确断定修理的作业范围。
参考答案:按需视情修理
Choose the best topic from A to F according to the meaning of each paragraph
小题1:.Everyone has his own way of relaxing. Perhaps the most popular form is to take part in sports.. There are team sports, such as basketball and football. There are also individual(个人的) sports, such as swimming and running. Skating and mountain climbing are the most popular recreation for people who like to be outdoor.
小题2:When you are reading something in English, you may often come across a new word. What’s the best way to know it? You may look it up in the English-Chinese dictionary. It will tell you a lot about the word, The pronunciation, the part of speech, the Chinese meaning and also how to use this word.
小题3: Students in many countries are learning English. Some of these students are small children. Others are teenagers. Many are adults. Some learn it at school, others by themselves, a few learn English by listening to the language over the radio, on TV, or in films. One must work hard to learn another language.
地理教学中经常用示意图来表示地理现象的发生与变化,读右图回答下题。
若该示意图表示“低纬地区大气环流圈”,则形成赤道低气压带的是()
A.甲处
B.乙处
C.丙处
D.丁处