【单选题】软磁材料的特点是
A.
磁导率大,矫顽力小,磁滞损耗小,磁滞回线呈长条状
B.
磁导率小,矫顽力小,磁滞损耗大,磁滞回线呈长条状
C.
磁导率小,矫顽力大,磁滞损耗小,磁滞回线呈长条状
D.
磁导率大,矫顽力大,磁滞损耗大,磁滞回线呈长条状
【单选题】价值120万元的房子,贷款72万元,月利0,49%,贷款20年,利用等额本息还款方式,累计支出利息多少元?
【判断题】软磁材料的特点是在磁场中很容易被磁化,但磁场消失时,其剩磁B r 很小。
【单选题】听力原文:M: If an instrument is payable to the order of both A and B who are not partners, what should they do? W: Both of them must endorse, unless one has authority to endorse for the other. Q: Which of...
A.
Both endorse the instrument.
B.
Neither of them endorses the instrument.
C.
A authorizes B to endorse the instrument.
D.
B authorizes A to endorse the instrument.