一般维修地震检波器都用()的内热式电烙铁。
A、10W
B、20w
C、50W
D、100W
参考答案:C
根据所给的提示,写出空白处单词的正确形式。
小题1:Lucy is ________ out because she will go to a new school.
小题2: Please brush your ________ before you go to sleep.
小题3: Jim is very kind, he enjoys his little sister.
小题4: I have to study for the test at home
小题5:Peter is a little than Paul.
通过心泵机制和胸泵机制作用的是()
A.心肺复苏
B.心肺脑复苏
C.胸外按压原理
D.电除颤原理
E.脑复苏治疗原则