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【单选题】
正常情况下，TR3脱开继电器是闭合的。这种情况下TR1、TR2和TR3分别供电给谁（）？A.
TR1和TR2分别供电给1号和2号直流汇流条，TR3供电给热电瓶汇流条并可作为TR1和TR2的后备电源，
B.
TR1和TR2分别供电给1号直流汇流条和电瓶汇流条，TR3供电给热电瓶汇流条并可作为TRl和电瓶汇流条的后备电源
C.
TR1和TR2分别供电给电瓶汇流条和2号直流汇流条，TR3供电给1号直流汇流条并可作为TR2和电瓶汇流条的后备电源
D.
TR1和TR2分别供电给1号和2号直流汇流条，TR3供电给电瓶汇流条并可作为TR1和TR2的后备电源
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【简答题】室内楼梯间、电梯井、提物井、垃圾道、管道井等建筑面积应怎样计算?
【单选题】For questions 1-5, look at the learners’ characteristics and the three possible activities listed A, B and C. Choose the activity (A, B or C) which matches the characteristic. 1 These learners are ma...
A.
The learners in groups tell a story based on a series of pictures they look at.
B.
The learners go round the class reading posters made by the other groups.
C.
The learners listen to a recording about an athlete and fill in a table.
【单选题】For questions 1-5, look at the learners’ characteristics and the three possible activities listed A, B and C. Choose the activity (A, B or C) which matches the characteristic. 4 These learners don’t l...
A.
The learners write stories, practise reading first silently then aloud, and then tell them to their partners.
B.
The learners look at pictures of a story and then tell their partner their story.
C.
The learners each make up a story then tell it to their partner.
【简答题】思想政治教育研究的重要意义
【单选题】For questions 1-5, look at the learners’ characteristics and the three possible activities listed A, B and C. Choose the activity (A, B or C) which matches the characteristic. 2.These learners have a ...
A.
The learners spend the lesson doing lots of different choral drills.
B.
The learners spend the lesson reading an article on the computer about a favourite topic.
C.
The learners read a story, then discuss it, then draw pictures describing it.
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