从点A看B的方向是北偏东35°，那么从B到A的方向是[ ]
A．南偏东55°
B．南偏西55°
C．南偏东35°
D．南偏西35°
答案：D
整数分为正整数和负整数．______．（判断对错）
Many of the classical music _____on the island. For instance , Mozart Requiem was still an interesting event to the younger inhabitants of the valley.
A．keep
B．reserve
C．conserve
D．survive
