采用复测法测得的误差，若误差小于允许误差，应取两线中间位置作为测量成果。 ( )
参考答案：对
— I heard Back Street would sing at the New Theater.
— Where did you _____? [ ]
A. pick that up
B. put that up
C. make that up
D. take that up
简述植物快速繁殖现状和展望？
