怀疑主义作为一种学派的学说最初是由（）提倡的。
A、伊壁鸠鲁
B、皮浪
C、泰阿泰德
参考答案：B
手足口病的主要病变部位为（）.
A.肺、脾
B.肺、大肠
C.心、肺
D.脾、肾
E.肺、肝
Is it the country ________ you studied ________ you are going to visit next week?
A．in which; which
B．where; that
C．that; that
D．where; where
