强大自然灾害后的心理反应一般经历以下阶段()。
A.警觉期-恢复期-康复期
B.警觉期-搏斗期-恢复期
C.惊吓期-恢复期-康复期
D.惊吓期-衰竭期-恢复期
参考答案:C
It was 80 years before Christopher Columbus crossed the Atlantic ______Zheng sailed to East Africa .[ ]
A. when
B. that
C. after
D. since
“TMR RESET”按扭可使()
A.氧气停止供应;
B.氧气面罩放出;
C.停止客舱广播,“SYSON”灯灭。