对含有多种重金属的含氰废水，分别用酒石酸—硝酸锌法和磷酸-EDTA法预蒸馏，测定馏出

You can speak to people on other side of the earth over the telephone with help of a satellite. They can help to take photos on the earth and produce maps. Some pictures taking by satellites show us the exact place where different metals can be found. They can also tell the differences between healthy plants or poor ones. This is a great help to the scientists work in forestry and in agriculture. Satellites benefit by out daily life. For example, satellites for broadcasting are used to sending radio and TV programmes from one part of the world to other. It is the satellites to make our world seem smaller.

读读，想想，记记。

1．人之初，性本善。___________________。

2．___________________。亲师友，习礼仪。

3．____月____日是圣诞节，这是西方国家最重要的节日。

4．这个圣诞节，她不仅送给我们棒棒糖，还送给我们______________、______________、______________和______________，以及一个陌生女孩如愿以偿的笑脸。

5．《掌声》一文中同学们的掌声给了英子极大的______________，让她战胜了______________。

根据阴阳学说，下列属阳的是

A．静止

B．下降

C．兴奋

D．晦暗

E．湿润

市场领导者的策略特点是立意市场竞争、提高市场占有率。( )

检修标记涂打有何基本要求？