微生物培养过程中，肉眼鉴别金黄色葡萄球菌和枯草杆菌的重要依据是（ ） A．细菌的大小、形状、颜色B．菌落的大小、形状、颜色C．有无鞭毛D．培
As we all know, the Dragon Boat Festival is our country’s traditional festival, but do you know there is also a Dragon Boat Festival in South Korea, which also falls on May 5 of the lunar calendar(
在图9所示的电路中，电源电压保持不变，为定值电阻，为滑动变阻器．闭合电键S，移动变阻器的滑片P，使电压表和电流表的示数分别为6伏和0.15安．
— What do you think this coat is made _____? —Wool. It’s used for _____. A. of, keeping warm B. from, keeping warm C. in, keeping warmly D. of, keeping warmly
下列关于世界观的说法正确的是 A．世界观是人们对主观世界的根本看法 B．世界观是理论化、系统化的正确观点 C．世界观是人们对整
某几何体的三视图如图所示，则这个几何体的体积是 .
