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【简答题】
为MINI_STM32工程 原理图文件中的所有元件添加封装; 2.将原理图元件更新(导入)至PCB文件,绘制PCB板子形状,将各元件在PCB板子上进行 适当布局。 3.阅读课件5.PCB布局布线一般原则中布局部分内容
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举一反三
【单选题】The order of stains in Gram-staining procedure is
A.
Crystal violet, Iodine solution, Alcohol, Saffranine
B.
Iodine solution, Crystal Violet, Saffranine, Alcohol
C.
Alcohol, Crystal Violet, Iodine solution, Saffranine
D.
None of these
【单选题】Assume that you are viewing a Gram-stained field of red cocci and blue bacilli through the microscope. You can safely conclude that you have
A.
made a mistake in staining
B.
two different species
C.
old bacterial cells
D.
young bacterial cells
【简答题】After Gram staining, the Gram-negative bacteria are in ( ) .
【单选题】Which of the following about Gram staining is most correct:
A.
Heating is done to promote entry of stain into cell wall of both Gram +ve and –ve bacteria
B.
If observed staining technique and microscopy before decolorization, both Gram +ve and –ve bacteria appear same
C.
Teichoic acid is present in the cell wall of Gram–ve bacteria
D.
Results must be observed under electron microscope
【简答题】Pair the steps and solutions used in Gram staining.
【简答题】Complete the following sentences according to the text. Most organisms are classified by their reaction to ( ). An organism that is ( ) must have an intact cell wall. The basic dye diffuses ...
【单选题】What is the reason for decolourisation in gramnegative bacilli in Gram staining?
A.
Due to the two dyes used in staining
B.
Thin peptidoglycan layer
C.
Cell membrane integrity
D.
Teichoic acid
【单选题】In the Gram staining, after decolorizing with alcohol the Gram (-) cells stain _________, while Gram (+)cells stain ___________.
A.
blue:red
B.
red:blue
C.
colorless:blue
D.
blue:colorles
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