下列措施有脑保护作用，除外（）
A.亚低温
B.控制血糖
C.兴奋性氨基酸
D.兴奋性氨基酸拮抗剂
E.巴比妥类药
参考答案：C
计算机的内存储器比外存储器______。
A．更便宜
B．存储容量更大
C．存取速度快
D．虽贵但能存储更多的信息
A figure that can be folded over along a straight line so that the result is two equal halves which are then lying on top of one another with no overlap is said to have a line of symmetry. Which of the following figures has only one line of symmetry
A．Square
B．Circle
C．Equilateral triangle
D．Isosceles triangle
E．(E) Rectangle
