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The design of Web streams predates async iteration in JavaScript. The for await...of syntax didn't land until ES2018, two years after the Streams Standard was initially finalized. This timing meant the API couldn't initially leverage what would eventually become the idiomatic way to consume asynchronous sequences in JavaScript. Instead, the spec introduced its own reader/writer acquisition model — and that decision rippled through every aspect of the API.
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（二）非法买卖、运输、携带、持有少量未经灭活的罂粟等毒品原植物种子或者幼苗的；，更多细节参见WPS下载最新地址
It looked at all the available evidence and concluded that screening was only suitable for:
相較之下，YouGov是「自願參加」的調查平台，人們自行報名以換取積分，積分可兌換現金。