{01}The US Army suffered a record 32 suicides in July 2011, the most ______ it began publishing monthly figures in 2009. A.since B.when C.while D.though 解析: 本题选A。
{02}We won"t give up ________ we should fail ten times. A.even if B.since C.whether D.until 解析: 本题选A。
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