20 Which of the following statements is NOT true about the Outer Mongolia issue and the Tibet issue in thelate Qing and early Republic of China?
(A) British troops stationed in India invaded Tibet twice.
(B) In 1914, China, Britain, and Tibet signed the Simla Accord in India, which was recognized by the Yuan Shikai administration.
(C) After the outbreak of the 1911 Revolution, Outer Mongolia launched its first independence movement.
(D) After the outbreak of the October Revolution in Russia, the civil war between the Red Army and the White Army spread to Outer Mongolia.