【单选题】The new CEO demanded that all inter-office communications ______ in writing rather than in person, ______ possible.
A.
have been made; whoever
B.
would be made; whichever
【单选题】The new CEO asked that all inter-office communications ______ in writing rather than in person, ______ possible.
A.
have been made; whoever
B.
would be made; whichever
【简答题】土壤质地可分为( )、( )和( )三类。
【单选题】保守力的特点是______,保守力的功与势能的关系式为______。
【简答题】土壤质地可分为3大类,即( )、( )、( )
【简答题】按苏联卡庆斯基的质地分级制,土壤质地可分为沙土、 和 三类
【多选题】信用证严格相符原则是指受益人必须做到( )