营养不良测量评价指标之一是体重小于（）
A.中位数
B.中位数-1SD
C.中位数-2SD
D.均数
E.P10
参考答案：C
People exposed to radiation are more _______ to suffer from certain forms of cancer, which can be ______ but can’t be ______at present.
A．more likely; treated; cured
B．more probable; treated; cured
C．more possible; cured; treated
D．more likely; cured; treated
在细菌黏附和聚集中起作用的3个活性因子有（）
A.代谢酸
B.细菌表面蛋白
C.蛋白分解酶
D.多糖
E.脂磷壁酸
