【单选题】在下述酒母制作工艺流程中,哪个环节是实验室阶段向生产现场阶段转变的关键节点。 试管原菌种-试管斜面培养-三角瓶培养-卡氏罐培养-大罐培养
【单选题】Why did ancient people usually live where there were plenty of trees?
A.
Trees provided them with shades
B.
Trees indicated plenty of sunlight and rainfall
C.
Trees were material for burning and building houses.
D.
Trees provided them with fruit and food.
【简答题】(10)设x和y均为int型变量,则执行以下语句后的输出为:____。 x=13; y=5; printf(“%d”,x%=(y/=2));
【判断题】不同二氧化碳排放情景下,未来的气候变暖都很可能使得全球海平面进一步上升。
【判断题】原材料的质量控制主要是对目的基因、表达载体以及宿主细胞的检查。
【判断题】One-third of the area is covered with green trees. About seventy percent of the trees have been planted.()
【单选题】What is the passage mainly concerned with?
A.
The benefits of trees.
B.
Trees and soil protection
C.
The various uses of trees.
D.
Different attitudes toward trees.
【判断题】多仓数秤的工艺流程特点是工艺流程简单,设备的操作与维修方便,总体布置紧凑,占是面积小,便于实现自动化控制。 ( )
【单选题】在下述麸曲制作工艺流程中,哪个环节是实验室阶段向生产现场阶段转变的关键节点。 试管原菌种-试管斜面培养-三角瓶培养-帘子盒式培养-机械通风制曲