(1)如图所示,甲 _________ ℃,乙 _________ ℃。
(2)图丙中电流表的示数是 _________。
(1)﹣6.2;38.8。 (2)0.7A。
U.S. President Barack Obama ______ a speech at a dialogue with Chinese youth at the Shanghai Science and Technology Museum during his four-day state visit to China, Nov. 16, 2009.
A.addressed
B.delivered
C.composed
D.recited
符号代表()。
A.平行度
B.垂直度
C.倾斜度
D.位置度