2.Which are true in U.S courts?要解释···

2.Which are true in U.S courts?要解释···
(a) \x05Trial court cases may have juries,but cases on appeal do not have juries.
(b) \x05\x05State courts have both civil and criminal cases,but there are no criminal cases in Federal courts.
(c) \x05The burden of proof in a civil case is “preponderance of the evidence”,but burden of proof in a criminal case is “beyond a reasonable doubt.”
(d) \x05A person found “not guilty” in a criminal case may be sued in a civil case for damages from that same incident.