单项选择题
( )He is always complaining about one thing or__________.A.othersB.somethingC.anotherD.everything
多项选择题 营养学中提出的防治心血管病的膳食指南描述正确的是( )。
单项选择题 ( )The writer suggests that Catch-22 is________..A.a very great English novelB.an accurate portrayal of life in wartimeC.an excellent piece of satireD.the work of a neglected author
单项选择题 自养微生物的生物氧化包括发酵、有氧呼吸、无氧呼吸。 A、正确 B、错误