19 Some of the trials were probably stopped early for commercial reasons.
A Right
B Wrong
C Not mentioned
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42 WhichstatementabouttheepidemicisNOTtrue?
A Itoccurseveryfourthyear.
B ItstartsonMarch15.
C Itisknownas"MarchMadness".
D ItlaststhroughthebeginningofApril.
(2009年真题)关于各类规划的编制和期限,下列说法正确的是()。
一年级有三个班,共有120人.其中一班、二班人数之和比三班多20人,三班比二班多10人.问一班有多少人?()