I was surprised by his words ,which made

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问题选择题

I was surprised by his words ,which made me recognized ______silly mistakes I had made .

A．what

B．that

C．how

D．which

答案

答案：A

这题考查what引导的宾语从句，what修饰silly mistakes，句意是：我听到他的话很吃惊，这使我认识到我犯了多么愚蠢的错。

单项选择题案例分析题

患者，女性，30岁，发现颈部肿块1周就诊。体检于气管左侧扪及一结节，质硬，随吞咽上下活动，同侧锁骨上扪及3个肿大淋巴结。

确诊的方法为（）

A.组织活检

B.B超

C.放射性核素扫描

D.CT

E.磁共振

问答题

（1）计算s1，s2，s3的值；

（2）由（1）推测出Sn的计算公式，并用数学归纳法证明。