如图, AE / / BF , AC 平分 ∠ BAE ,且交 BF 于点 C , BD 平分 ∠ ABF ,且交 AE 于点 D ,连接 CD .
(1)求证:四边形 ABCD 是菱形;
(2)若 ∠ ADB = 30 ° , BD = 6 ,求 AD 的长.
We arrived _____ Shanghai______ the morning of July 2nd.
We have to stay at home ________ the heavy rain.
You can buy tickets ______ here.
The weather in Beijing is ________.
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