【单选题】It will be appreciated ____ you could effect shipment in two equal lots by direct steamer ____ you receive our L/C.
【单选题】Professor Wang, here is my composition. Could you ________ it?
【单选题】It will be appreciated _________ you could effect shipment __________ you receive our L/C.
【简答题】天以六为劫,地以()为制。 A、七 C、九 D、十