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小汽车的怀档和脚刹驻车设计，更符合动作经济原则。
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There are ten sentences in this section. Beneath each sentence there are four words or phrases marked A, B, C and D. Choose one word or phrase that best completes the sentences.1. Louie was fun, with a great sense of play, and yet, unafraid to ________ new challenges.A. take in B. take on C. take out D. take up2. As early as the Meiji Restoration, the Japanese began to ________ a great deal of effort on science, technology and education.A. expel B. expand C. expend D. expatiate3. It is unfortunate that the problem of children education is often ___________.A. neglected B. overwhelmed C. withdrawn D. disputed4. Plants will _______ in a fertile soil when plenty of sunshine and rain is available.A. cherish B. nourish C. flourish D. polish5. Being ________ to the Internet, she knows a lot about e-commerce, which made her a skilled online buyer.A. expressed B. executed C. expended D. exposed6. The constitution had ________ everybody with rights and obligations.A. instructed B. invested C. inspired D. indulged7. This new kind of refrigerator is environment-friendly which ________ 60 percent less electricity than traditional models.A. consumes B. conducts C. conforms D. conveys8. The main road through there was blocked for three hours today after an accident _____ two trucks.A. containing B. connecting C. involving D. including9. Children often catch minor diseases, but they soon bounce ________, so don’t be over-worried.A. out B. off C. back D. on10. Passers-by on the street managed to ________ the badly injured driver with first aid treatment like cardiac massage and artificial respiration.A. relive B. revive C. survive D. alive
一直流电动机拖动一台他励直流发电机，当电动机的外电压，励磁电流不变时，增加发电机的负载，则电动机的电枢电流Ia和转速n将（ ）。
并励直流电动机磁通增加10%，当负载力矩不变时（T2不变），不计饱和与电枢反应的影响，电机稳定后，Te将（
习近平生态文明思想深刻回答了“为什么建设生态文明”“建设____的生态文明”“____建设生态文明”等重大理论和实践问题。
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