现场对成人进行口对口吹气前通常应将伤病员的气道打开至()为宜。
A.60度
B.120度
C.90度
D.75度
E.100度
参考答案:C
用所给单词的适当形式填空。
1. I think Erin should tell her friend Anna not ____________ (be) late for class again.
2. She always hes an ____________ (argue) with her husband about money.
3. Children need some ____________ (organize) activities.
4. You don’t need to have too much ____________ (press). Just try your best.
5. They are ____________ (crazy) about dancing and singing.
当执行下列指令后,(AL)= 【7】 ,(DX)=3412H。 STR1 LABEL WORD STR2 DB 12H DB 34H MOV AL,STR2 MOV DX,STR1