5.就誌哀掛半旗言，在早晨升半旗時，下列敘述何者是正確的？ (A)將國旗升到旗桿一半 (B)將國旗升到頂 (C)將國旗升到頂，然後再降到旗桿一半 (D)將國旗升到頂，然後降到底端再升到旗桿一半

11.For Typhoon and the cyclone, which statement of the following is incorrect? (A)Normally, the affected area of Typhoon is smaller than the cyclone. (B)The cyclone exists in higher latitude than Typhoon. (C)Typhoon may develop at high latitude subject to the surface of seawater is cold enough. (D)Typhoon has no front but the cyclone has warm or cold front.