题目

读北半球中高纬度环流示意图，下列说法正确的是 A．甲点位于30ºＮ附近 B．乙点位于30ºＮ附近 C．①是冷性气流           D．②盛行西南风 答案：AI am always        to speak in the front of the classroom. [     ]A. disappointing                  B. scaredC. surprised                       D. nervous