栈中允许进行插入和删除的一端叫做______。

下列各组词语中，没有错别字的一组是（ ）

A．碰钉子 磨洋工 拆墙角 敲边鼓

B．闭门羹 拌脚石 耍花招 执牛耳

C．挤牙膏 发烧友 脱口秀 唱双簧

D．反修率 明信片 炒鱿鱼 无名火

There were also other forms, of entertainment. The opera and the operetta remained popular, and music and theater ______ a renaissance.

A．underwent

B．experimented

C．discovered

D．resisted

Our thinking is not mature enough when we stereotype people because_______.

A.we neglect their depth and breadth.

B.they are not all jocks, peeks, or freaks.

C.our thinking is similar to that of a very young child.

D.our judgment is always wrong.

与十进制257等值的十六进制数为______。

A．FF

B．101

C．F7

D．11

15岁男性，于半月前突然惊叫一声，倒在地上，双眼上翻，四肢抽搐，面色青紫，历时约5分钟逐渐清醒，醒后未述不适。5年前曾有类似发作一次。1周前脑电图检查为正常。神经系统检查无异常，此时最合适的处理是（）

A.复查脑电图

B.头颅CT检查

C.脑脊液检查

D.给予抗癫癎药物

E.暂不给抗癫癎药，继续观察