在红外卫星云图上，云的色调由（）来决定。
A、太阳辐射强度
B、目标反照率
C、季节和时刻
D、目标的温度
参考答案：D
–We have worked for a long time ,so we should a rest .
–Sounds good!
A．stopped to have
B．stopped having
C．stop having
D．stop to have .
下列代表十六进制整数的是
A．0XA6
B．1234L
C．-840
D．0144
