图书馆古籍工作所指的古籍范围主要是指（）年以前的刻本、写本、稿本、拓本等。
A.1900
B.1911
C.1919
D.1949
参考答案：B
It has been estimated that the earth’s surface temperature has increased () one quarter to three quarters of a degree since 1805.
A. to
B. by
C. at
D. with
