21.   Beijing insists the Spratlys have been Chinese since ancient times and bases its claims on the recovered cargo of shipwrecks and obscure historical references.

a. + reference >>共 601
sexual 5.37%
direct 4.85%
apparent 3.56%
specific 3.09%
future 2.85%
passing 2.80%
veiled 2.38%
clear 1.85%
frequent 1.71%
religious 1.52%
historical 1.00%
historical + n. >>共 1058
record 3.56%
figure 2.66%
site 2.49%
significance 2.20%
perspective 2.09%
event 2.07%
context 2.02%
society 1.81%
datum 1.56%
fact 1.52%
reference 0.38%
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