三、四等水准测量采用双面尺法观测的顺序为后、()、前、后。
参考答案:前
— Have you got used to the Chinese food, Robert?
— Yes. But I don't like _____ when a Chinese host keeps serving me the food I don't like.
A.this
B.that
C.those
D.it
国民党统治区第二条战线斗争的先锋和主体是 ( )
A.学生运动
B.工人运动
C.农民运动
D.市民运动