课外活动小组

Drawing on the rich experience of our primary and secondary KB teachers in KLAs such as primary school general studies and extra curricular activities, secondary level languages studies, liberal studies, sciences and humanities etc, the project teachers and the project team will highlight their insights and give pointers to the various resources in the professional development website.

参与本计划的老师及研究小组成员，将引用他们在中小学不同学习领域，例如小学的常识科和课外活动，以及中学的语文教育、通识教育、科学、人文教育等方面的丰富经验，重点介绍他们的心得，并演示上述为知识建构老师而设的资源网站内的各种教学资源。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。