气象要素
参考答案：
构成和反映大气状态的物理量和物理现象，称气象要素。主要包括气压、气温、湿度、风、云、能见度、降水、辐射、日照和各种天气现象等
一般在妊娠多少周才能清楚显示胎头光环()
A．8周
B．8～9周
C．10周
D．11周
E．12周
In 1937 Eleanor Roosevelt, who was a disceming stateswoman in her own right, became the first wife of a United States President to hold a press conference.
A． perceptive B． controversial C． generous D． respected
