【单选题】What is needed for ballroom dancing because of the combination of its features?
【单选题】多媒体技术对计算机网络提出的基本要求是( ).
【单选题】What document is needed for further transfer?
【单选题】What is needed for solving online shopping problems according to Mr. Qiu?
A.
Improvement of payment tools.
B.
Adequate credit management.
C.
Dispute resolution processes between buyers and sellers.
【单选题】All ____ is a continuous supply of fuel oil. A). what is needed B). that is needed C). the thing is needed D). for their needed
【单选题】What is needed for ball room dancing because of the combination of its features?
【单选题】附合水准路线BMA、Al、A2、BMB,BMA的高程为22.193, BMB的为24.678,BMA-A1观测了 8站,高差为hl=+0.897, A2-A1观测了 12站,高差为h2=—0.670, A2-BM B观测了8站,高差为h3=+0.897,则由A到B计算,每测段的改正数应为()m m。