填空题If you _____ your paper carefully ,some grammar mistakes can be avoided.
填空题The broadcast came from America by _____ and was heard at the same time in Europe.
填空题在试验和推广新技术、新工艺、新设备、新材料的同时，应制定相应的（ ）措施，经本单位（ ）批准后执行。
填空题The doctor allowed him to go home on _____ that he remained in bed.
填空题His energetic efforts met with only _____ success.
填空题No matter how hard we try, we can at _____ do only half as much as last year.
填空题The firm will have to step _____ production if it is to defeat its competitors.
填空题The reason for his success is _____ he worked hard.
填空题线路停电检修，工作许可人应在线路可能受电的各方面（含变电站、发电厂、环网线路、分支线路、用户线路和配合停电的线路）都（ ）并挂好操作（ ）后，方能发出许可工作的命令。
填空题It was so quite at night. We _____ carefully but _____ nothing.
填空题When the bike was repaired, it looked _____new.
填空题We have _____ sugar. Ask Miss Hones to lend us some.
填空题The American company whose chemical factory in India exploded will have to _____ for the loss of human lives.
填空题输电线路一般都采用________线， 220kV及以上线路由于输送容量大，同时为了减少________和________而采用相分裂导线，即每相采用两根及以上的导线。采用分裂导线能输送较大的电能，而且电能损耗少，有较好的防振性能。
填空题在一经合闸即可送电到工作地点的开关、刀闸的（ ）上，均应悬挂（ ）的标示牌。
填空题对呼吸、心跳停止的伤员就地抢救，应立即用（ ）支持呼吸和循环，对脑、心重要脏器供氧。
填空题短路电流互感器二次绕组，应使用（ ）或短路线，禁止（ ）。
填空题I am glad to _____a chance to visit your country.
填空题架空绝缘导线( )视为绝缘设备，作业人员不准（ ）和接近。