【单选题】( )The reason why the electric eel is able to give more powedul shock is that.
A.
compared with those in the torped0,the working system of electric plates in theeel is moreDirect and efficient
B.
compared with other electric fish,the eel possesses much more electricDlates
C.
the working system of the electric plates in the eel is far inferior to those in thetorpedo
D.
the working system of the electric plates in the eel is the most effective
【单选题】What is the most important reason that Sequoyah will be remembered?
A.
California redwoods were named in his honor.
C.
He created a unique alphabet.
D.
He recovered from his madness and helped mankind.
【单选题】某电气安装工程公司承包某化工厂电气设备安装工程。该设备主要有能量转换设备、开关设备以及防雷设备。设备安装完毕,经检查,无质量问题。但该化工厂在正常运营一段时间后发生爆炸事故,经调查,属于内部过电压造成,于是化工厂立即采取有效措施,防止事故再次发生。 布线系统指的是以( )为主的电缆、电缆及桥架、线槽和导管等。
【多选题】“花式冷拼”的不足之处有( )
B.
花式冷拼拼摆时,多用上好的原料,导致下脚料极多,造成严重的浪费
C.
一般筵席席桌较多,从而延长了花拼制作时间,由此带来卫生上的不安全性
【单选题】马克思主义的物质范畴从客观存在着的物质世界中抽象出了万事万物的共同特性( )。
【判断题】许多科技产品的用色采用红色色调,在生活用品和服饰用品设计大多利用红色来塑造高贵或神秘的形象。
【判断题】只要受到刺激,细胞膜就会产生一个完整动作电位。