皮皮学，免费搜题
登录
搜题
【单选题】
O157属于A.
EHEC
B.
EPEC
C.
ETEC
D.
EIEC
E.
EAEC
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】__________ are the quantitative limits placed upon the importation of goods from all countries or specific countries.
【简答题】在影响儿童心理发展的主客观因素中,( )是影响儿童心理发展的自然条件。A. 遗传和生理成熟 B. 环境 C. 教育 D. 环境和教育
【单选题】I have felt for a long time that aid to underdeveloped countries should be placed in a definite and more rational order of priorities. Firstly, those underdeveloped nations who are short of food shoul...
A.
food shortage
B.
food surpluses
C.
costs of aid
D.
food consumption
【单选题】Because of the worldwide breakout of H 1 N 1 , many countries have placed on travel to prevent the further spread of it.
A.
criterions
B.
restrictions
C.
descriptions
D.
prescriptions
相关题目：
参考解析：
知识点：
题目纠错 0
发布
