原发性肺结核的常见播散方式是（）
A.淋巴道播散
B.血行播散
C.支气管播散
D.淋巴道和支气管播散
E.血行播散和淋巴道播散
参考答案：E
The London 2012 Olympic Games marks the third time that London ________ the right to host the modern Olympics.
A．had had
B．has
C．had
D．has had
额定最大环境温度
