The Web streams spec requires promise creation at numerous points — often in hot paths and often invisible to users. Each read() call doesn't just return a promise; internally, the implementation creates additional promises for queue management, pull() coordination, and backpressure signaling.
国务院财政、税务主管部门提出货物、服务、无形资产、不动产的具体范围，报国务院批准后公布施行。
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It can also be hard to interpret the results of testing finished products that contain lots of ingredients.
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