medical technologycernhigh energy physicslinear acceleratorelectron beamscancer treatments
Once a transaction is confirmed, it is placed in a block after the confirmation. All of the blocks are chained together to create a permanent history of every transaction.，这一点在新收录的资料中也有详细论述
Rare clash off island’s coast took place amid US oil embargo and heightened tensions between two countries，这一点在新收录的资料中也有详细论述
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