习题链接：LeetCode 1944. 队列中可以看到的人数
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International Business
Its recent trial of age checking software by Persona in the UK has attracted some scrutiny over the vendor's backing by an investment firm co-founded by Peter Thiel, boss of controversial US data firm Palantir.
The Artemis II crew - Nasa's Reid Wiseman, Victor Glover and Christina Koch and Canadian astronaut Jeremy Hansen - were at the Kennedy Space Center watching the rocket as it was moved.