void *y = alloc(h->type, length);
// 测试用例（可直接运行验证）
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Nvidia is the world's most valuable publicly-traded company, with a stock market value of around $4.8tn.
She said her experience was extreme and she felt she did not have anyone to talk to.
二二八：兩邊都說不能忘記但是距離很遠2016年2月28日