供电系统供电频率的允许偏差对电力网容量在300万kW以下者绝对值不大于()Hz。
A.0.3
B.0.4
C.0.5
参考答案:C
单词拼写(10分)
小题1:Is that seat already ___________? (占用)
小题2:Doing morning exercises surely has some _____________(有益的) effects on our health.
小题3:Usually people show great ___________(同情) for the children begging in the streets.
小题4:He was the only w___________(目击者) to that accident.
小题5】He was ___________(遗弃) by his cruel parents when born because of his disability.
小题5:The mountains are __________(反射) in the clear water, forming a pleasant picture.
小题6:You’d better ____________(适合) yourself to the life here as soon as possible.
小题7:Everybody is required to ____________(参加) in the spring outing.
小题8:Follow the doctor’s advice, ____________(否则) you’ll not get better soon.
小题9:The teacher ____________(推荐) the book written by Dickens to his students.
发生高血糖的主要原因是葡萄糖在组织的利用增加和肝糖原输出的减少。()