COSPAS-SARSAT系统中（）把船位识别信息送往RCC.
A.LUT
B.MCC
C.RCC
D.NCS
参考答案：B
—Who is that?
—It _____ be Shirly. Only she is in red today . [ ]
A. could
B. may
C. must
某2层建筑的抹灰及楼地面工程划分为天棚及墙面抹灰、楼地面瓷砖铺设两个施工过程。每一层抹灰的持续时间为18天，瓷砖铺设的持续时间为9天，每层平面上划分3个流水段组织施工。 [问题]
