推理悬疑
黑刺沟金矿位于秦祁昆地槽褶皱系南祁连地向斜构造带的西段。
Heicigou gold deposit is regionally located at the western section of the southern Qilian geosyncline of QinlingQilianKunlunshan mountain fold system.
因此，以网室内单位叶面积产卵量为指标基本上能反映出黑刺粉虱对不同茶树品种的寄主选择性。
Therefore, the host preference of Alewocanthus spiniferus to different tea varieties could be basically reflected by the oviposition number per unit in the net laboratory.
生于北美东部的两种李子树或灌木之一，结深紫色果实的黑刺稠李，或结黄色或红色果实的金刺稠李。
Either of two eastern North American plum trees or shrubs, Prunus alleghaniensis, having dark purple fruit, or P. americana, having yellow or red fruit.
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