主页
学科
搜索
账户
常见问题
当前学科:中药化学
题目:
多选
溶剂提取方法有()
A . 煎煮法
B . 渗漉法
C . 回流法
D . 浸渍法
E . 连续提取法
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
皮肤瘀斑是确诊流脑败血症型的惟一标准。
营销学家阿德勒将()称为共生营销
Many of the activities performed during the preliminary investigation are still being conducted in(1),but in much greater depth than before. During this phase, the analyst must become fully aware of the(2)and must develop enough knowledge about the(3)and the existing systems to enable an effective solution to be proposed and implemented. Besides the(4)for process and data of current system, the deliverable from this phase also includes the(5)for the proposed system.
风口前理论燃烧温度
湿球温度代表当地气温条件下,热水可能被冷却的理论最低温度。
女,25岁,颈部疼痛2年。CT示颈右侧椎旁有一2cm×3cm软组织密度肿块,呈"哑铃"形,第5~6颈椎右侧椎间孔扩大,诊断为()
语言符号与它所代表的事物之间()。
小孔型室间隔缺损()
在含有Ar或He等元素的气体中,电弧的引燃(),而含有K或Na等元素的气体中,电弧的引燃()。