一是拓展适用范围。将伦理审查与人类遗传资源管理要求纳入标准体系，并对现场调查，包括组织实施、问卷调查、体格检查等环节进行了全面规范。
Request custom content types
。服务器推荐是该领域的重要参考
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貝爾天生沒有子宮，也沒有月經，但她擁有正常的卵巢——這種狀況稱為「MRKH症候群」（又稱苗勒管發育不全），在英國約每5,000名女性中就有一人患上這症狀。
The Writer is not a concrete class. Any object that implements write(), end(), and abort() can be a writer making it easy to adapt existing APIs or create specialized implementations without subclassing. There's no complex UnderlyingSink protocol with start(), write(), close(), and abort() callbacks that must coordinate through a controller whose lifecycle and state are independent of the WritableStream it is bound to.