厨房操作人员的技术提高是（）的主要要求。
A.原料选择
B.切配加工
C.技术指导
D.劳动协调
参考答案：C
季节多次性发情的动物是（）。
A.猪
B.绵羊
C.猫
D.犬
E.牛
The Grammar-Translation Method dominated foreign language teaching（）.
A. from mid-19th century to mid-20th century
B. from 1920s to 1940s
C. from the late 18th century to early 19th century
D. from 1910s to 1930s
