在市场有效的情况下，债券的收益率不会受股票收益率的影响。 ( )
参考答案：错
The London 2012 Olympic Games marked the third time that London ______ the right to host the modern Olympic.
A．had had
B．has
C．had
D．has had
子宫颈癌扩散转移途径哪项最少
A．直接蔓延B．血行转移C．髂内淋巴结D．髂外淋巴结E．骶前淋巴结
