我看到的所有新闻上都说亚投行股份配额是以各国GDP为基础的。哪里有详细的说明说保证中国有唯一否决权的？

据新华社报道10月24日, 包括孟加拉国、文莱、柬埔寨、中国、印度、哈萨克斯坦、科威特、老挝、马来西亚、蒙古国、缅甸、尼泊尔、阿曼、巴基斯坦、菲律宾、卡塔尔、新加坡、斯里兰卡、泰国、乌兹别克斯坦和越南共同决定成立亚洲基础设施投资银行（AIIB）,《筹建亚投行备忘录》明确，亚投行的法定资本为1000亿美元。初始认缴资本目标为500亿美元左右。实缴资本为认缴资本的20％。目前各意向创始成员同意将以国内生产总值（GDP）衡量的经济权重作为各国股份分配的基础，因此，中国将持有最大股份,据中国领导人指出，亚投行应该加快促进本地区基础设施互联互通，推动区域经济合作，为亚洲经济发展注入新动力

China welcomes US participation in AIIB, Silk Road Fund
Updated: 2014-11-12 17:28
(Xinhua)
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BEIJING -- China welcomes participation of the United States in the Asian Infrastructure Investment Bank (AIIB) and the Silk Road Fund, Chinese President Xi Jinping said here Wednesday.
China welcomes US participation in AIIB, Silk Road Fund
Members named for Asia infrastructure bank
China welcomes US participation in AIIB, Silk Road Fund
Asian Infrastructure Investment Bank will guide capital
"China upholds the principle of openness and inclusiveness in the proposals and initiatives it raised, such as the new security concept for Asia and the establishment of the AIIB and the Silk Road Fund," Xi told his US counterpart Barack Obama during talks held in Beijing.
China welcomes active participation from relative countries, including the United States, in those proposals and initiatives, Xi said.
The remarks came days after Xi's announcement that China will contribute $40 billion to set up a Silk Road Fund.
The fund will be used to provide investment and financing support to carry out infrastructure, resources, industrial cooperation, financial cooperation and other projects related to connectivity for countries along the "Belt and Road", Xi said during the Asia-Pacific Economic Cooperation (APEC) meetings that just concluded in Beijing.
The Belt and Road refer to the Silk Road Economic Belt and the 21st Century Maritime Silk Road initiatives raised by China.
Last month, a total of 21 Asian countries inked a Memorandum of Understanding on the establishment of the AIIB with an expected initial subscribed capital of $50 billion.
The new security concept for Asia was put forward by Xi at the fourth summit of the Conference on Interaction and Confidence Building Measures in Asia (CICA) in Shanghai in May.

不是去年签谅解备忘录的时候