()食量关系到营养平衡和适口性,同时又受到消费水平的制约。
A、动物性
B、植物性
C、豆类
D、蔬菜
参考答案:A
18._________a US visitor visa twice, the old couple finally gave up their hope of going to America to experience Thanksgiving Day.
A.Having been refused
B.Being refused
C.Having refused
D.To be refused
某人误食某种物质1小时候后,出现头晕、头痛、恶心、呕吐、多汗、胸闷、视力模糊、无力、肌震颤、瞳孔缩小、呼吸困难、意识模糊、呼出气体有大蒜样恶臭,该人可能是()
A.有机磷农药中毒
B.有机氯农药中毒
C.亚硝酸盐中毒
D.含砷杀虫剂中毒
E.毒蕈中毒