为了实现母线完全差动保护,在母线所有的连接设备都装设具有相同变比的()。
A、电压互感器
B、电流互感器
C、自耦变压器
D、安全变压器
参考答案:B
下列句子中划线的近义词选用恰当的一项是( )
(1)为了赢得姑娘的芳心,他 于姑娘的爱好,投其所好,这是 于整个家族的利益。
(2)修订后的《义务教育法》 ,以来,配套的制度如何 成了广大家长的关注热点。
① 着意 ②着眼 ③ 颁布 ④公布
A.①②③④
B.②③①④
C.①④②③
D.②④①③
根据句意,用所给动词的适当形式填空。
小题1:More than one person (clean) the classroom at 6 o’clock yesterday.
小题2:The boy has been used to (lie) when he makes a mistake.
小题3:It’s said the price of food in China (rise) quickly recently.
小题4:I tried many ways I could think of (stop) the little boy from crying.
小题5:Not only the students but also the teacher (ask)to go to school on time now.