MRI检查未见明显异常。
为了确诊,对该病首先要重点进行的检查为()
A.血常规
B.尿常规
C.血糖、尿糖或糖耐量试验
D.头颅CT检查
E.脑电图
参考答案:C
There _______ a lot of fish in the water. [ ]
A. is
B. are
C. have
D. has
什么是直接置换法?