对人既是抗体又是抗原的物质是()
A.内毒素
B.类毒素
C.动物来源的抗毒素
D.过敏毒素
E.干扰素
参考答案:C
类纺锤形或椭圆形,表面红色或暗红色,气微,味甜()
A.决明子
B.乌梅
C.草果
D.沙苑子
E.枸杞子
I am pretty certain that the latest events you have just described can only _________ her unhappiness.
A.take to
B.add to
C.come to
D.appeal to