农业上应用人工合成的性引诱剂诱杀害虫的雄性个体,使很多雌性个体不能正常交配,致使种群密度()
A:明显下降
B:保持稳定
C:迅速增长
D:越来越大
下列不属于细菌菌落特征的是( )
The two ____ (woman) in the photo are my mother and my aunt.
Don't be ____ (暴露于) to the strong sunlight, which may damage your skin.