[单选题]10kV负荷开关，可带电拉合（），在事故处理过程中，可以用来带电分段试送以判断故障区域
A.变压器充电电流
B.正常负荷电流
C.电缆及架空线的故障电流

The front matter of a book consists of the title, subtitle, table of contents, and preface. But the (1) of readers who pay no attention to the signals is larger than you might expect, unless you happen to be one of those who are (2) to admit it. I have this experience again and again (3) students. I have asked them (4) a book was about. I have asked them to tell me, in the most general (5) , what sort of book it was. This, I have (6) , is a good way, almost an indispensable (7) , to begin a discussion.
Many students are (8) to answer this first and simplest question about the book. Sometimes they apologize (9) that they haven’ t finished reading it yet, and (10) do no know. That’s no (11) ,I point out. Did you look at the rifle Did you study the (12）  Did you read the preface (13) introduction No, they did not. The front matter of a book (14) to be like the
A. too honest
B. enough honest
C. honest enough
D. so honest