根据我国居民膳食特点,矿物质中严重摄入不足的是()
A.钙和铁
B.镁和锰
C.铁和磷
D.锌和钼
E.硒和钠
参考答案:A
— Every means _____ been tried so far to deal with the oil spill (漏) in the Gulf of Mexico.
— But few _____ effect.
[ ]
A. have, take
B. had, takes
C. has, takes
D. has, take
男性,40岁。走路不稳数年。CT表现如下图。可能的诊断为()
A.神经纤维瘤病Ⅰ型
B.Dandy-Walker综合征
C.结节性硬化
D.带状型灰质异位
E.颜面血管瘤综合征