这个图形的周长是____厘米。

下列反应能生成水且属于分解反应的是____ 
A．氢气的燃烧       B．水的通电分解      C．双氧水的分解      D．____ ．

B

    EVERYDAY since March 8, people all over the world are repeatedly asking the same question: Where did Malaysia Airlines Flight MH370 go? It turns out to be the saddest answer.

    On March 24, Malaysian Prime Minister(总理) Najib Razak announced that the plane "ended in the southern Indian Ocean". All 239 people on board, including 154 Chinese, died.

    The conclusion was based on satellite(卫星) data from the British Air Accidents Investigation Branch and Inmarsat, a Britain ­based satellite company. No debris(残骸)of the plane had been found.

    The news sent people, especially families of passengers(乘客), into deep sorrow. They are asking for more details about the investigation.

    China has already asked Malaysia to provide(提供) all the information and evidence(证据) leading to the conclusion, said Chinese Foreign Ministry spokesman Hong Lei. He said China would continue with their search effort. "We hope that other countries will also continue their search, " Hong said.

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