母婴保健法规定,国家鼓励和支持母婴保健领域的()
A.教育工作
B.教育、预防工作
C.教育、科研工作
D.预防、科研工作
E.预防工作
参考答案:C
关于淤积性皮炎描述错误的是()。
A.好发于四肢
B.可伴有不同程度静脉曲张
C.可形成溃疡,并遗留色素沉着
D.处理可采用抬高患肢并用弹力绷带等方法
E.反复发作者可采用曲张静脉根治术
(66) is defined as the buying and selling of products and services over the Internet. It had included the handling of purchase (67) and funds transfers over computer networks from its inception.
A.Electronicmail
B.Searchengine
C.Multimedia
D.Electroniccommerce