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.
Diana Spencer says there are other less costly solutions and grants are on offer from the Bat Conservation Trust.
。关于这个话题，爱思助手下载最新版本提供了深入分析
6月15日，林芳所在幼儿园以“隐瞒贫血病史”为由，正式通知解聘。林芳随即向海沧区教育局提请复核，并在海沧区教育局工作人员陪同下，再次前往厦门市中医院检查，血常规化验结果显示不贫血。28日，海沧区教育局作出维持解聘的决定，其依据为《福建省教师资格申请人员体检标准》中“血液系统疾病不合格”的相关条款。
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