【判断题】商业计划书能否打动投资人关键取决于文笔水平。( )
【单选题】We advised them to take a rest, but they ______ on finishing the work.
【单选题】In order to keep error to a minimum,we are advised to_________.
A.
separate our emotions from what we see
B.
improve our memory of what we see
C.
get a better look at what we are interested in
D.
concentrate on what makes US relaxed
【简答题】We advised them to take a rest, but they _____________ on finishing the work. [A] suggested [B] continued [C] insisted [D] persisted
【简答题】常用的铁氧体软磁材料有哪些?它们各自有什么特点,分别有哪些应用?
【单选题】To correct the problem the author discusses we are advised to__________ 查看材料
A.
stop being so insecure towards children
B.
let children play more
C.
study the roots and effects of our fear
D.
stop regulating children's lives
【单选题】位于 “正常获利区”的产品定价指的是:( )
【单选题】位于 “正常获利区”的产品定价指的是:( )
【多选题】为了达到“故障-安全”要求,安全型继电器在结构上有哪些特点?
A.
前接点采用熔点高,不会因熔化而使前接点粘连的导电性能良好的材料。
B.
增加衔铁重量,采用“重力恒定”原理在线圈断电时强制将前接点断开。
C.
采用剩磁极小的铁磁材料构成磁路系统,并在衔铁与极靴之间设有一定厚度的非磁性止片,当衔铁吸起时仍有一定的气隙以防剩磁吸力将衔铁吸住。