TTL与非门的输入端短路电流大约为()。
A.50mA
B.20mA
C.10mA
D.1.4mA
参考答案:D
根据汉语及首字母提示补全单词。
1. Jim dislikes green, I h_________ it, either.
2. It's fun to look at your p_________ when you are older.
3. Mary is your mother's sister. she is your a_________.
4. When I came in, my mother was cooking in the k_________.
5. Hi, Lucy. Remember to _________ (关闭) the lights when you leave.
面向儿童的个别谈话(),是我国儿童个案工作经常使用的两种形式
A.面向儿童的心理辅导
B.面向儿童的社区服务
C.面向儿童的家庭治疗
D.面向儿童的咨询服务
E.面向儿童的团体辅导