在我国用于肝癌普查的是( )
A．B超
B．CT
C．AFP
D．CEA
E．MRI
参考答案：C
乳糖不耐症患者最适合食用的奶制品是（）
A.炼乳
B.酸奶
C.还原奶
D.全脂奶粉
E.脱脂奶粉
It’s dangerous to let the children who are ____ walk across the crowded street.
A．too young to
B．so young
C．not old enough too
D．so young as to
