法的特征包括( )。 A．法是一种特殊的社会规范 B．法是国家制定或认可的社会规范

Samuel Clemens, ______ Mark Twain, wrote many popular stories. [ ]

A. was known as

B. known as

C. was known for

D. known for

一个数，它的千位上是最大的一位数，千位上的数字是个位上数字的3倍，其余各位上都是0，这个数是多少？

根据所提供的图像，最可能的诊断是()

A．胰腺癌

B．胰岛细胞瘤

C．胰腺炎

D．胰腺囊腺癌

E．以上都不是

What did you think of the movie last night?    [ ]

A. What do you think of    

B. What did you think

C. What do you think about    

D. What did you think about

差动变压器式电感传感器是把被测位移量转换成（）的变化装置，通过这一转换，从而获得相应的电压输出。

A.线圈自感

B.线圈互感

C.LC调谐振荡

D.RC调谐振荡