根据世界卫生组织的资料,血红蛋白值在6月~6岁的儿童其最低限是多少()
A.100g/L
B.120g/L
C.90g/L
D.110g/L
E.130g/L
参考答案:D
The restlessness of animals _____ a possible occurrence of an earthquake. [ ]
A. expressed
B. impressed
C. indicated
D. announced
苯丙胺属于()
A.阿片类
B.可卡因类
C.大麻类
D.中枢兴奋药
E.致幻剂