— Yes, _______.
A:you're right
B:that's OK
C:he is
D:she isn't
如图,在B港有甲、乙两艘渔船,若甲船沿北偏东60°方向以每小时8海里速度前进,乙船沿南偏东某方向以每小时15海里速度全速前进,2小时后甲船到M岛,乙船到P岛,两岛相距34海里,你知道乙船沿哪个方向航行吗?
要测量标有“2.5V”字样小灯泡的额定功率.现有器材:电压恒为6V的电源,一只电压表,标有“50Ω 1A”的滑动变阻器A和标有“×Ω1A”的滑动变阻器B(阻值模糊不清),实验过程如下:
看图,阅读短文,判断正误。
Tommy is a boy. He is apupil. He is a short and thin. He is ten. He gets up early every morning. He gets up at half past six. He brushes his teeth at a quarter to seven in the morning. He goes to school at half past seven in the morning.