把骨折伤员抬上担架时，要由2名救生人员把手托放在伤员身下，一起将伤员抬上担架.
参考答案：错
－Where did you put the car keys?
－Oh, I ______ I put them on the chair because the phone rang as I _______ in.
A．remembered; come
B．remembered; was coming
C．remember; come
D．remember; was coming
电磁铁进行通电试验时，当加至线圈电压额定值的（）%时，衔铁应可靠吸合。
A、85
B、65
C、80
D、75
－Oh, I ______ I put them on the chair because the phone rang as I _______ in.