.要道信号:();使用时机:要道时。
参考答案:二短一长声
从括号中选字组词,用“√”标出。
(原缘)故 (联连)络 (训驯)练
气(息吸) (颗棵)粒 可(邻怜)
相(依倚)相偎 花生米(飘漂)浮到空中
Thirty-five percent of the breaking strength of an anchor cable is generally accepted as the().
A.safe operating load
B.normal operating tension
C.emergency working load
D.allowable storm load