对地电压为()伏以上为高压电。
A.380
B.250
C.180
D.360
参考答案:B
动脑筋,看看下面的对话对不对,对的在括号里打“√”,错的打“×”。
( ) 1. A: Do you have a library?
B: Yes, it is.
( ) 2. A: Welcome to our school!
B: Thank you.
( ) 3. A: Your school is beautiful!
B: Oh, no.
( ) 4. A: I have a new classroom.
B: Really? Let's have a look!
( ) 5. A: Look, that is a canteen.
B: I like chicken.
提出“五脏之中肝有余,脾常不足,肾常虚”的是
A.张仲景
B.钱乙
C.万全
D.刘完素
E.叶天士